All case studies Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

CASE STUDY – China –

Population distribution and economic development at a national scale

A

CASE STUDY – China –
Population distribution and economic development at a national scale

…People are moving from the outskirts to the city to receive economic prosperity…

Location: Country in East ASIA
Population: Largest population worldwide (1.4 billion 2017)

The population distribution:
Due to physical geography the population is very uneven.

East coast - urbanization

West cost - isolation
94% located in the East coast (more developed)

6% in the West (less developed)

Coastal zones, lower reaches of river valleys –trade and commerce
Desert (Gobi desert), steep slopes, dry grass lands – dry and steep - can’t produce crops

90% of the population live on 8.2% of the land but in LIC’s (inner Mongolia) 4% of the population live on 50% of the land

Economic growth impact on population:
Higher GNI per capita income was higher than average meaning a population increase.

China population distribution predication:
• By 2020 350 million new inhabitants.
• Urbanization creating mega-regions housing a number of mega cities (over 10 billion people) and millionaire cities

Internal migration outline:
•	IN 1978 the world’s largest internal population movement - 160 migrant shave moved from rural areas to urban places to receive 40% higher wages
⎫	Helped Chinese economy 
o	Increased labor and land costs
o	Rural urban wealth inequities widened
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

CASE STUDY – South Africa –

Population distribution and economic development at a national scale

A

Location: A country on the southernmost tip of the African content
Population distribution: Very uneven. Decreases from SOUTH-EAST to NORTH-WEST.

Some regions have 100 people /km2 and others 5 people km2

Economic growth impact on population distribution:
Populated areas are found due to-
•	Good mineral resources (gold /diamond)
•	Trading
•	Farming potential
•	Rainfall

Outline internal migration: (3 main periods)

  1. Economic migration – linked to industrial development
  2. Forced migration – Linked to apartheid movement
  3. Voluntary migration – Linked to collapse of apartheid system

Between the two world wars South Africa’s industry boomed thus many black individuals migrated back to cities to work as migrant labors in gold and diamonds mines

South Africa set up an apartheid policy between 1948- 1994 as white national parties had political control. Under the policy 4 million black people were forced removed from white areas and returned to homelands. Also restriction on entraining white towns were made – influx control

Migration is circular motion – worker moves repeatedly between home and host areas

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

CASE STUDY –India, Mumbai–

Consequences of a megacity growth

A

Location: One the Indian plate, west coast of India (key access to trade point)
Population: India’s largest city is Mumbai with 18 million people

Main slum called Dharavi

Why did it develop into a megacity:

  • Changed economic industry –
    Before 1970’s fishing villages After textiles / important Technology (aerospace/ engineering)
  • Many TNC’s are based here “Tata group” and “ Bombay stock exchange”
  • Contains quaternary sectors (Department of atomic energy)
  • Increased development = 18 million

Problems:
o 9 / 12 million live in slums
o Uneven gender ratio (Female: 838 / Male:1000)
o Rapid growth = unemployment, underemployment, decrease access to healthcare, poor sanitation and access to electricity.
o 4,000 cases of diphtheria and typhoid a day
o Main slum is home to 1 million people in 2km

Benefits:
⎫ Very lively and provide lots of activities
⎫ 85% of the adult’s work locally
⎫ Major recycling industry’s although they can be dangerous

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

CASE STUDY –Syria –

Migration

A

Location: Western Asia, bordering Lebanon

Causes of migration:

  • Emergence of fundamental Islamic group Isis (known as IS) lead to 10 million people being displaced
  • Syrian conflict began a civil war but extended to Iraq when Isis declared them both Islamic “caliphate”
  • People feared they’d be killed, captured or forced to live under severe and harsh Islamic rule.
    = Refugees to neighboring countries

Where do they go and why?

  • A lot easier to be internally displaced than internationally displaced.
  • 4 million people are internally displaced and 4.5 million people Syrian refugees in 5 other countries.
  • Zaatari refugee camp camp in Jordon just 8km from the Syrian border is the 2nd largest refugee camp.

Effects of migration:

  • 1.4 million refugees in Lebanon that ¼ of their population
  • Increased poverty
  • Severe economic and environmental consequences
  • Strain on health, education services, electricity, water and sanitation systems
  • Schools forced to provide places for up to 100,00 Syrian children
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

CASE STUDY – Nigeria –

Forced migration

A

Location: West of Africa

Nigeria has the 3rd largest number of IDP

In 2014 a terrorist group “Boko Haram” kidnapped 276 school girls from the village of Chibok in Northern Nigeria

The fear of Boko Harams violence has caused people to flee the region.

3 Million people have been internally displaced within Nigeria - 250,000 due to Boko Haram

Effects of displacement-

60% of farmers have been displaced = less produce harvested
1/3 of the regions healthcare has closed down, and healthcare workers have been abducted and killed.

People are lacking fresh water, sanitation.
Homes, services and infrastructure have been extremely damaged and Boko haram continue to attack schools.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

CASE STUDY – Japan –

Aging populations

A

Location: An island country in east Asia

Situation:
Since 1945 Japans population structure has greatly changed due to an decrease in both birth and death rates creating an ageing population.

Statistics:
Elderly living along increased from 0.8 million (1975) to over 2.5 million in 2000.
Since 2000 youthful population declined, In 2015 they only account for 13% of population

Causes:

  • One child policy (explained in different age study)
  • Decreased birth rate
  • Increase life expectancy
  • People prefer being single, prefer technology
  • Harder to find people in an elderly population to date
  • Increased contraception
  • Family planning

Affects:

  • Depletion of labor force
  • Depletion of military
  • Deteriation of economy
  • Increase cost of funding pensions and healthcare
  • New leisure facilities needed for elderly
  • A trade deficit
  • Migration of Japanese industries to other countries
  • Falling demand for schools and teachers
  • New jobs needed for the elderly
  • New leisure facilities needed for elderly
  • High cost for funding pensions
  • Increase in the burden of working population
  • Reduced demand for goods for the working population
  • A need for in-migration to fuel any increase in the workforce.

Solutions:

  • Government increased retirement age to increase workforce
  • Only allowed in hospital for three months to decrease elderly
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

CASE STUDY – Chinas 1 child policy

Anti-natalist

A

Population -1.3 billion – Largest population

Why was china’s population so large?

  • After ww2 as people were encouraged to have as any kids as possible due to the belief that population growth empowered a country.
  • For every square kilometer there are 139.6 people

Why was the one child policy imposed:
Goal – was to reduce china’s population as it was too rapidly growing.
Malthus’s theory is that when a population overtakes resources god will send death and famine. To avoid this the policy was introduced.

WHEN was it introduced:
In 1976 the one child policy was imposed, known as the most severe and controversial methods.

The effect:

Slowed population by 4 years
Birth rate fell from 17 per 1000 from 33 per 1000 (1970)
Reduced population growth in a country of 1.3 billion by as much as
300 million people over 20 years alone
Prevented 400 million births
Disparate ratio of 118 males: to 100 females compared to the global norm of 107 boys: 100 girls
Males are more valued then females = females aborted and orphaned

In 2015 the Chinese government changed the policy to allow couples to have 2 children instead of one.
Rules varied to the location of the family. Some stated that that if the first bay was a girl the family could have another. Farmers were always allowed to have two due to having more space and using them for agriculture.

Policy worked too well = ageing population for the next 20 years.

How was the policy forced:

  • Social compensation fee (fine of 4 years wages). Sometimes government took physical items.
  • Free contraception
  • Family planning network across the country that monitors women
  • Propaganda / advertising
  • You have to have a permit to be pregnant
  • Pre-matal classes
  • Free healthcare, free education, housing preference

Advantages:
⎫ Female healthcare has improved = higher life expectancy
⎫ Infant mortality has dropped (during child birth especially)

Problems / side effects:
o Little emperor syndrome – children become brats as parents give them all the attention.
o Policy is unfair, some places allow 2 kids while others don’t.
o Forced abortions / sterilization / cohered – illegal after 20 years
o 70 million men with no chance of marriage – leads to kidnapping and poor lifestyle = crime increases.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

CASE STUDY – Russia

Pro-natalist

A

A comprehensive set ofpronatalistmeasures came into effect in January 2007.

Russia population position:
- In 2000’s deaths outnumbered births by 958,500
- In 2000’s natural increase was -6.6 per 1000
TFR was 1.1 children per women and falling
Population falling by 700,000 each year

Why do they have a pro-natalist policy:

  • High infant mortality rate
  • Low fertility rate
  • Decreasing population

Why did it occur:

  • Poor reproductive healthcare services
  • Lack of modern contraceptives
  • Widespread and unsafe abortions
  • High divorce rates
  • Infertility due to unhealthy life styles
  • Women wanted high living standards thus chose fewer children
  • Increased education = more working women
  • Aging population structure

The incentives:

  • Women who gave birth to 2/3 kids were offered $9,200
  • Good reputation – women with large families are called “Hero Mothers” and given medals and gifts
  • Increased child benefits and longer maternity leave
  • September 12th –“Day of conception”, if u got pregnant nine months later you would receive cars, Tvs, ect. A day relived of work.
  • All expense paid summer camp for young adult
  • Gave women 40% of what they previously earned if they left their jobs to have kids
  • Government considered tax for no children

Effects:

  • Increased birth rate in the following year of 4.5%
  • In 2010 fertility rate was 1.55 compared to 1.2 the previous year
  • In 2012 birth rates increased by 7.2%
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

CASE STUDY – India, kerala

Gender and literacy equality

A

Location: South-West of India

Autonomy- means being able to rule without having to obey some other higher authority

Background:

  • Most densely populated area in India
  • Even spread of population and no large cities
  • Remarkable success in improving health, literacy and education and in decreasing birthrates.
  • Its success is more remarkable as it has a lower per capita than the rest of India

Factors related to Kerala’s success:

  • Autonomy and stability of the government
  • Long standing and continuing social reform
  • Status of women in society

Roles of women in Kerala:

  • Tradition of female employment with girls educated the same as boys
  • Open access to universities where women often study to be doctors or nurses
  • Jobs open to women in the health sector since early 2000’s
  • Women have autonomy
  • No tradition of payment or obstacles to remarry

Other remarkable factors:
- Highest female to male ratio
Theirs - Female: 1,084 : Male: 1000
Average - Female: 940 : Male: 1000

  • Increased literacy rate from 90% in 1991 to 94% in 2011
  • Female literacy rate increased from 86% to 92%
  • Low infant formality rate 13 per 1000 compared to national average of 80
  • High life expectancy of 74 for females and 70 for males
  • TFR is low, 1.9

Remaining problems:

  • Women are marginalized in the economic process and have a lack of control over resources.
  • Work participation Is 18% for women compared to 53% for men
  • Women are concentrated in low paying jobs such as farming, cotton industry’s and domestic services.

3 main ways to gain access to economic resources:

1) Participation of labor market
2) Acquiring a share of the family property
3) Establishing a business or taking part in the informal economy

Happens because women are looking after the house and people

What has been done:

A number of self-help groups (SHGs) have been set up to empower women from poor households.

Women meet weekly in neighborhoods to discuss experiences and get training.
There are also microfinance systems

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

CASE STUDY – Nigeria

Trafficking Nigeria women to Europe

A

Many women are trafficked from Nigeria to Europe with the purpose of sexual exploitation

Europe’s more persistent trafficking flows, Nigerian women accounting for 10% of trafficked people in Western / Central Europe.

What did the women believe:
Women believed they were going to a new life and sign a contract. They are trafficked to Europe to say debts as big at $40,000 -$70,000.

Threats may be made to family members and women are controlled by their “madams”.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

CASE STUDY – Ethiopia

Demographic divide

A

Since 2000 Ethiopia has made very good progress in improving health and development in people.

  • Infant and maternal morality are on decline
  • Literacy has nearly doubled
  • Women reproductive health has increased
  • Use of contraceptive methods increased from 6% in 2000 to 27% in 2012.

NOW= Women have 4 children compared to 6 a decade ago

Yet Ethiopia still has a long wat to go to meet demographic divide requirements:
- Increase investment in family planning

This is because 40% of Ethiopia’s population is under the age of 15.

In 2030 it is predicted Ethiopia will receive the structure it needs for a demographic divide

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

CASE STUDY – South Korea

Demographic divide

A

A good example of the advantages gained from decreasing fertility rates.

Between 1960 and 1990 South Korea made a rapid transition from high to low fertility.

How did it do this:
- Addressed population problems
- Investing in reproductive health systems
- Investing in education
- Investing in economic policies
= Create infrastructure and manufacturing

In more detail:
- They followed an aggressive population policy
- Government invested in health centers to provide services and family planning
- Target of 45% of married couples to use family planning
- Showed that fewer children – better life
By 2005, fertility dropped to 1.2 children

Shifting the education strategy:

  • Educated people with the knowledge and skills they needed to achieve economic development.
  • Shift in focus and commitment to education contributed to 97% of school aged children attending school in 1990.

Economic planning:

  • In the 1950s the economy was farming and fishing. Improved relations with Japan led to investment capital that strengthened the industry and allowed shipping.
  • Government also addressed unemployment through a program that provided minimum wage for workers.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

CASE STUDY – Greenland – Negative feedback

A

Location: A Massive island located in the continent of North America

What is happening:

Since 2002 the Greenland’s ice which were previously to tall and cold to melt. They now pour billions of gallons into the Northern Atlantic.

From 1979 – 2002 Greenland’s sheet maximum melt area increased by 16%

In 2016 almost 12% of the ice sheets were melting two months early beating the previous record of 10% in 2010

Effects:

  • Risen see levels
  • Threat of the return of very cold winters to Britain
  • Increased melting could shut off the currents to the Gulf Stream. Meaning snow would be dumped instead of being rained thus meaning a colder continental climate.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

CASE STUDY – Swiss glaciers – The retreat of Swiss glaciers

A

Location:
Switzerland is located in central Europe. Swiss alp’s are situated in the South of Switzerland.

Current situation:

Glaciers are predicted to recede at an accelerated rate. This will lead to a massive change in landscape.

The glaciated surface of the Swiss alps declined from 1,800 kms to 1,300kms in 1971, a loss if one third.

The surface area decreased from 4.4 to 3.15 % (loss of 1.3%)

The glacier has retreated over 2.5 kms in the last 130 years, it has been in continuous decline.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

CASE STUDY – USA –

Destruction of forests

A

Current situation:
Dense American forests are a significant carbon sink, absorb around 13% of greenhouse gases that the US emits through burning fossil fuels.

How climate change is affecting forests:

  • Fire
  • Insect infestations
  • Drought

In 2015 over 10 million of Americans 766 acres were consumed by fires.
This was the biggest burning since 1960.
It cost the US government over $2 billion.

Fires role in the natural system:

  • Clears away diseases
  • Remove leaf litter
  • Create space for new growth
  • Prevent buildup of wood materials

The mismanagement:

  • Planted dense forests to replace the old ones, increasing the impact when they do occur
  • Climate change is belived to make up California’s drought 15-20% more severe

Insects:

  • They say insects are as bad as droughts in regards to trees
  • Insects as well as droughts killed 26 million trees in California
  • Drought stressed trees lose their ability to repel insects. Spruce beetle populations are growing rapidly.
  • Both drought and insects will get worse with climate change.

Mitigating the effects:

  • Requires a massive intervention to clear dead trees
  • In 2015 the USFS spent more than half their budget on firefighting and by 2025 67% will be used on firefighting.
  • Trees are forced uphill due to warmer and drier climates
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

CASE STUDY – UK –

Climate change

A

A lot of impacts on the UK due to climate change…

ϖ Rising temperatures
- Expected to increase 0.2C per decade

ϖ Increased rainfall and wind speeds

  • Annual precipitation will increase 5% by the 2020’s
  • Gale frequencies will increase 30%

ϖ Droughts and floods

  • Dry south-east will become drier
  • Moist North west will become wetter
  • Flooding will occur more often
  • Cost of flooding is $340 million per year, predicted to rise to $430 million if global temperatures increase by 2
  • 180,000 homes at risk of flooding

ϖ Rising sea levels and higher tides

  • Rise 5cm a year, sea
  • Storm surges will increase
  • High tides will be frequent
  • Coastal defenses could be vulnerable

ϖ Potential storm surges

  • Increase storm surges
  • Increase loss of homes
  • $200 billion economic cost
17
Q

CASE STUDY – Bangladesh –

Flooding

A

Location structure;

Located in southern Asia. Most of the country forms a delta from three main rivers which regularly burst their banks and flood the land.
Advantages:
⎫ Waters crops
⎫ Increases soil fertility

Since 1970, the intensity and duration has increased…

Problems
o Flooding will increase
o Rise in temperature of 2.6C
o Increase rainfall 14-40% by the 2030 and 53-135% in 2090’s

Preventions:

  • Flood action plan –aim to protect the area of effects of flooding
  • Sluice gates were built on a number of rivers
  • Government build 5,700km of embankments
  • Dug 5000km of drainage channels to divert floodwater away from buildings
  • Constructed 200 flood shelters
18
Q

CASE STUDY –“Three amigos summit”–

A

In 2016 the USA, Canada and Mexico agreed to set rules covering climate change actions.

  • They pledged to have 50% clean energy by 2025
  • They need to increase energy efficiency
  • They agreed to reduced methane emissions by 40-45% by 2025
  • Also agreed to reduce hydrofluorocarbons which is the most present greenhouse gas.
  • Also agreed to decreased vehicle emission
19
Q

CASE STUDY –GREENPEACE–

Their protesting at events

A

On August 27th 2013 during the prize giving ceremony, Greenpeace embarrassed the sponsor SHELL by raising automated banners showing they are killing the artic when retrieving oil.

In Russia. Moscow they dressed as polar bears due to the Artic drilling

In the Philippines in 2012, Quezon people dressed up as Zombies as the government failed to prevent dangerous chemicals from leaking into the country’s rivers.

In china in 2000 companies such as Nedlloyd dumps toxic waste into Chinas harbors’ Greenpeace paints Chinas boats.

20
Q

CASE STUDY – Krakatoa –

Volcano

A

Location: Located in the Indonesia providence on an island called Rakata

Background information:

  • Krakatoa is an active volcano located in Indonesia
  • Erupted on 22nd of December 2018 and generated a tsunami
  • Has a small population

Impact:

  • Generated a 10-meter-high tsunami
  • Damaged costal fishing communities
  • Total damage cost – 1 million
  • 430 people died
  • 14,000 people injured
  • Thousands lost their homes
  • no tsunami warnings
21
Q

CASE STUDY – Eyjafjallajokull–

Volcano

A

Location: Southern Iceland, which is in Europe.at a constructive plate. It neibghors two other active volcanos.

Background information.
Eyjafjallajokull is a composite volcano as its located on a hotspot.
It erupted on the 14th April 2010.

Cause:
Many earthquakes were recorded on April 13th giving the volcano energy.

Impact:

  • Set of major flooding in Iceland as it melted a glacier causing 700 people to evacuate.
  • 500 local cattle farmers evacuated
  • many roads shut down
  • Plankton blood due to ash in the North Atlantic
  • Contaminated water supply
  • Many repertory related illness
  • Airline lost $130 million per day
  • 7 million passengers stranded
  • Over 100,000 flights cancelled
22
Q

CASE STUDY –Kyushu, Japan–

Mass movements

A

Location: A city in Japan, located on the boundary of 4 tectonic plates

Background information:

August 27th 2019 a mudslide / landslide occurred

Causes:
Area received over 1,000mm of rainfall. This caused large amounts og flooding which loosened the rock and made it flow. It was on top of a mountainous region leading to landslides with lots of energy.

Impacts:

  • Affect 1.1 million residents
  • Extreme flooding
  • 3 dead and 5 missing
  • River Ushezoo and Mastura burst their banks due to a combination of landslides and rain
  • Many vehicles and transport links were underwater
  • To sections of the high speed bullet train were disrupted from several hours
  • Schools and businesses closed
  • Manufacturing companies with production centers in the north suspended operations for a week
  • Major shipping firms were very delayed
  • 1900 stayed in evacuation centers
  • Hospitals were isolated, with 215 people stranded

Response:

  • 2 million evacuated
  • Self-defense forces were dispatched to provide disaster relief
  • 70,000 emergency workers deployed
23
Q

CASE STUDY – Sierra leone –

Mass movements

A

Location: In North- Western Africa. Mudslides occurred in Sierra Leones capital: Freetown

One of the poorest countries

Causes:
-	Large amount of deforestation 
-	Rapid urbanization 
-	Poor infrastructure 
-	Lack of technology 
-	Lack of planning
Ground become saturated and the mudslides occurred

Impacts:

  • 20,000 individuals at risk
  • 1,150 dead, many were asleep as it occurred at night
  • Most of the bodies lie beneath the rubble a year later
  • 3,000 families homeless
  • 1,250 property’s destroyed
  • Damaged amounted to $174,000
  • Power outages some intention to stop electrical disasters
  • Access between communities lost - $1 million cost

Response:

  • Government made promises to provide locals with money to sustain themselves but 1/3 of people never received money
  • 60% of government funds focus on temporary shelter
  • United nations Office on drugs sent a team with dogs to rescue anyone stuck
  • The red cross, military and local organizations contributed to immediate evacuation
  • Federal government and red cross contributed 15 vehicles including 3 ambulances
  • Everyone was advised to evacuate flood-prone areas

Solutions:

  • Reducing deforestation and doing afforestation
  • Exclusion zones
  • Plan where to build
  • Better structure of the buildings – deeper foundations
  • Investment in education people
24
Q

CASE STUDY – Tohoku –

Earthquakes

A

Tohoku-
Location: Japanese coastline

What happened:
On March 11th 2011 a magnitude 9 earthquake (6 minutes)

Occurred due to a destructive plate boundary with a subduction zone – Pacific plate under the Eurasian plate 
Primary effects:
-	Landfall
-	Collapsed buildings
-	Blackouts

Secondary effects:

  • Aftershocks
  • Tsunami
  • Destruction of billion anti-tsunami defense
  • Liquefaction
  • Transport disruption

Effects:

  • 19,000 deaths
  • 50,000 buildings destroyed
  • 500,000 left homeless
  • Destruction of nuclear power plants left radioactive elements in the environment
  • Lead to future demand to abolish nuclear power
  • Total waste is 80 – 200 million tons
  • Domino effect of shortages, Nissan and Toyota sourced a lot of parts from Japan
  • Nissan profits fell 15% due to shortage of part
25
Q

CASE STUDY – Haiti–

Earthquakes

A

HATI-
Location: In the Caribbean

What happened:
On January 12th 2010 a magnitude 7 earthquake (4:53pm)

Occurred due to a conservative plate boundary with the American and Caribbean plate
Primary effects:
-	Shaking of the ground
-	Landslides
-	Collapsed building
-	Gas and water lines burst
-	Cracks in roads and sidewalks

Secondary effects:

  • Aftershocks
  • Fires
  • Diseases from water contamination
  • Blocked roads
  • Dam disturbances
  • Floods
  • Soil liquefaction

Effects:

  • Destroyed 106,000 homes
  • Destroyed main airports and ports
  • Countries cancelled any debts owed to them by Haiti
  • Average loss of 15% gdp over 2010-2015
  • Oil spills
26
Q

CASE STUDY – Matchu picchu –

Landslides

A

Location: Matchu: Picchu is located in Peru

Background information:

  • Matchu picchu is a settlement built in the 15th century
  • 900,000 tourists visit the Inca trail annually

What happened:
On the 23rd of January 2010 up to 40 landslides occurred due to rain. Cutting the city of Cuzco off from the railway.

Causes:

  • High precipitation 67% higher than normal
  • Constant trekking (2,500 a day, half a million a year) erodes the trail

Effects:

  • Many homes destroyed
  • 2,500 tourists were stranded because several cuts to the Inca trail occurred
  • Main railway line from the city to the trails was also destroyed
  • Food, water and gas shortages after being stuck for 48 hours
  • The historical site was partly damaged
  • Hurt the tourism and agriculture industry in future months

Response:

  • 10 helicopters were sent to rescue people
  • 120 tourists were evacuated per hour
  • Community gave their supplies to trapped tourists
  • Evacuation took a week due to constant downpour
  • Authorities took oldest and youngest first
  • Some hotels like El Inka dropped prices when tourists ran out of money while others raised their prices up to $50 a night
  • Many left to eat from communal pots and sleep outdoors
  • Individuals stuck helped to clear the tracks in time

Possible solutions:

  • Maintain as much vegetation on the slopes as possible
  • Install physical structures (piles and retaining walls)
  • Modify slope geometry
  • Warning systems
  • Diverting debris pathways
  • Use chemical agents to reinforce slope material
27
Q

CASE STUDY – India –

Management of water, ice stupas

A

Situation (Causes and Impacts)

• Ice Stupas are melting at an unprecedented ratedue to temperature changes as a result of climate change.

• Glaciers are the only water-sourcefor the communities in Ladakh, as they melt, other water sources must be foundor created to sustain the villages.

• Melting glaciers are breaking the banks of streams which is also causing flooding.

• The lessaccessto water from glaciers meaningthat agricultural practices will also sufferwhich results in lessfood for the communities.

How have local communities participated? (Managing the situation)

• Inhabitants of the Hindu Kush and Karakoram ranges have practiced “glacier grafting”, chipping away at existing ice and pooling the pieces at higher altitudes, hoping to create new glaciers that can supply streams throughout the growing season.

ChewangNorphelearned the nickname the “iceman of Ladakh” by using a network of pipes to divert meltwater into artificial lakes on shaded sides of the mountain. The water would freeze at night, creating glaciers that grew each day as new water flowed into the basin.Norphelcreated 11 reservoirs that supplied water to 10,000 people.

Is the management sustainable?

“The ice needed to be shaded – but how?” he says. “We couldn’t have it under a bridge, or use reflectors, which aren’t practical at scale.Sowe thought of this conical shape: making ice shade itself.”

Does the management of water provide access to safe, clean and affordable water?

The water management does provide access to safe, clean and affordable water, however as temperatures continue to rise, the abundance of water at this sourcewill decrease, placing the communities at risk to a water shortage.

How does this situation link to the food-water-energy nexus?

The lack of water is impacting the crop yield and therefore, the production of food in the villages.

28
Q

Water management – Aswan Dam

A

Aswan Dam, a megadam of the River Nile
Was constructed in the 1960s and is the largest in the world based in Egypt

Advantages of the dam:

⎫	Flood and drought control: allow good crops in dry years
⎫	Irrigation
⎫	Hydroelectric power
⎫	Improved navigation
⎫	Recreation and tourism

Estimated value of the dam in the Egyptian economy is $500 million

Disadvantages of the dam:

o Water losses: dam provides less than half the water expected
o Salinization: crop yields reduced due to irrigated water (1/3rd)
o Displacement of population: 100,000 people
o Seismic stress: An earthquake of November 1981 due to the dam
o Deposition within the lake
o Channel erosion
o Erosion of the Nile delta
o Loss of nutrients
o Decrease fish catches

29
Q

CASE STUDY –Cape town–

Day zero

A

Day zero was brought on by three consecutive years of very poor rainfall (2015-2018) and the largest drought recorded in history that occurred on April 12th 2018.
-Water levels in the City’s dams declined from 71.9 percent in 2014 to 50.1 percent in 2015.

Causes of a drought:

  • High temperatures (low humidity, high evaporation)
  • Human activities (agriculture)
  • Low levels of precipitation

Effects of drought:

  • Increase wildfire risks
  • Increased imports
  • Decreasing agriculture production
  • 30,000 jobs will be lost
  • Increase in food prices
  • Less and limited food options
  • Less water available
  • Day zero created
  • Industry’s (food, wood, water) all suffer decreasing capita per person
  • Decrease transportation (ships)
  • Loss of life
  • Increase health problems
  • Water levels in the City’s dams declined from 71.9 percent in 2014 to 50.1 percent in 2015.
  • Drop in tourism

Solution:

  • Day Zero
  • Recycle water
  • Crop engineering

This is when dam levels fall to 13.5 percent capacity, meaning that the taps must be turned off, forcing 4 million residents to instead queue for water.

Cape Town’s population has been living on 50 liters of water a day, a limit that can be maintained by flushing the toilet just once daily and limiting showers to 10 liters.
Plugs have been removed from rooms of luxury hotels to prevent guests from taking baths.
Staggered tariffs on water consumption have also been imposed.

Households that exceed the limit face hefty fines, or having a meter installed in their home that shuts off their water once they go over.

Is the management sustainable?

Yes, to a certain extend. Water can be preserved for a certain period of time by reducing individual’s intake
Does the management of water provide access to safe, clean and affordable water?
Day zero does not provide water but rather preserves it so ensure that citizens do not run out.

How does this situation link to the food-water-energy nexus?

Due to a decrease in the volume of water that is available is directly affects both energy and food production, decreasing them both significantly.

Animals need water to survive and reproduce thus the amount of animals will decrease with the amount of water.

30
Q

CASE STUDY –China–

Water diversification

A

China’s South-North water diversion project:
What is it:
The Chinese government is building a $62 billion South-North water transfer project. The project would divert 44.8 billion cubic meters of water per year from from a river in the south to a river in the north. It consists of 2,400 km of canals and tunnels.

Effects

  • 35,000 people relocated due to the building of the reservoirs and canals
  • Some people say this has exaggerated the poverty in the south in Hebei
  • Water- hungry and polluting industries has to close
  • Some farmers changed to less water intensive rice farming = less profit
  • 25,000 out of 50,000 rivers have dried up, 70% of remaining ones are polluted

Biggest problems created:

In 2008 June Beijing’s reservoirs were down to a 10th of their capacity.
2/3rds of their water is drawn from underground water tables which is dropping a meter a year

What has been done:

  • Beijing has been trying to reduce demand by increasing tariffs
  • Beijing’s industries are now recycling 15% of their water consumption with 85% in developing countries
31
Q

CASE STUDY – Ethiopia dam–

Grand Ethiopia renaissance dam

A

Located: On the Blue river Nile
Ethiopia started construction on Africa’s largest dam “Grand Ethiopian renaissance dam”.

Purpose:

  • Generate 6,000 megawatts of electricity (double its current output)
  • The reservoir behind the dam will be able to hold more water than the Blue Nile itself
  • Ethiopia insists its use is for energy and that the turbines will push the water downstream. Egypt is scared it will be used for irrigation reducing flow downstream.
Stakeholders 
♣	Sudan 
♣	Egypt
♣	Ethiopia
♣	United nations

The effect on Egypt:

This opportunity for Ethiopia could be a disaster for Egypt.

  • The Nile produces nearly all of Egypt’s water.
  • Egypt claims two thirds of the water based on an agreement signed with Sudan in 1959
  • However, this is not enough now to satisfy the growing population and agriculture sector
  • Annual water supply has fallen more than half per person.

New agreements

In March 2015 Sudan, Egypt and Ethiopia all signed a declaration that approved construction of the dam as long as there is no “significant harm” to downstream countries.

  • Two French commissioned to study the dams potential problems. Some Egyptians believe that Ethiopia is stalling so that the dam is a fait accompli, already half-finished experts say it is too late to fix problems

fait accompli - a thing that has already happened or been decided before those affected hear about it, leaving them with no option but to accept it.

Problems

  • If the reservoir is filled too quickly will reduce significantly reduce downstream flow and and affect the electricity generating capacity of the Aswan Dam.
  • Ethiopian government faces pressure to see a quick return
  • The project costs $ 4.8 billion to build.
  • Some experts say that filling the reservoir could take 7 years

Sudan’s side

Majority of the time Sudan sided with Egypt as the dam is 20 km from its border but recently sided with Ethiopia due to the advantages they receive.

  • Will receive some of the power produced by the dam.
  • Stabilizing flow reduces flooding in Sudan, they can consume more water, increasing agriculture output

Future plans:
To build more dams

32
Q

CASE STUDY – Mississippi river –

Protecting the Mississippi river from flooding

A

Location: Located in the South of the USA

Flooded in 1993

Facts:

  • The river basin is the 5th largest in the world
  • Second largest in the North America continent
  • Runs through 10 states
  • Drains 1/3 of USA
  • Contains USAs most important agriculture region

How the river was controlled:

  • Stone and earth levees to raise the banks
  • Holding dams to hold back water in times of floods
  • Lateral dykes to divert water away
  • Straightening the channel to remove water speedily
  • $10 billion has been spent with an annual payment of $2 million

Physical and human causes of the flood:

  • Heavy rain April = July
  • 400-750 % above the monthly average precipitation
  • Heavy snowfall in the previous year
  • Levees are poorly built
  • Development of urban areas along the river
  • Channelization of river (St louis) causes problems down stream
  • Thunderstorm and cold are travelled from

Flood effects:

  • 43 people died
  • 72,000 homes destroyed
  • 62,000 families evacuated
  • 70% of levees damaged
  • stagnant water increases disease risk
  • Two towns wrecked (Valmeyer / Rhineland) relocated to higher ground
  • 25,000 km of land was flooded

Responses:

  • Afforestation
  • Dams and reservoirs built
  • Levees
  • Flood warnings along the river

The river was preforming its natural functions, humans had modified the channel so that it did not perform its natural function so people thought they were safe from the effects of flooding. If the river was left natural a new channel would have been created in 1970 but protections prevented this.

Flood relief measures include:
- Atchafalaya river which carried 25% of the rivers flow.
-

33
Q

1)CASE STUDY : Everglades (Wetlands) , Southern Florida

A

Location: Southern Florida ,USA

What has happened?

Since the 1800s, human actions have been altering the Everglades landscape. Water diversions and flood control projects have cut water flows and connections between wetlands throughout the everglades. Combined with agricultural and urban development, the sixe if the Everglades has decreased dramatically.

Purpose of the Everglades:

Provides drinking water for more than 8 million people
Protects communities from hurricanes and floods : act like a sponge and soak up water
Supports Florida’s $1.2 billion fishing industry
Generates $150 millions of direct spending annually just in Everglades National Park
Store carbon: soak up carbon from the atmosphere which helps to regulate climate change
Filter water: they clean and filter water
Support diverse wildlife: Provide homes for many plant and animal species

Consequence of wetland drainage
Less filtration – increased flooding
Increased erosion
Destruction of habitat
Less purification of water – increased levels of pollution
Less replenishing of water
Occurrence of invasive species – ie. wild boar, hog and wild horses

Competition for resources:

  • Invasive exotic species are now dominating in the habitats that were once home to indigenous plant and animal species. species was originally introduced into Florida as pets, food sources, ornamentals, biological controls. A forging fish was introduced into the everglades originally as a pet being released.
  • Agriculture runoff causes algal blooms and poisons drinking water and natural habitats from lake Okeechobee.
  • Half the original wetlands are gone due to 2,253 kilometers of canals and levees within the everglades region used for water control and diversion off agriculture land into lake Okeechobee
  • -Urban storm water regularly causes flooding as the natural barrier is gone. More water diversion is no necessary that will further destroy the wetland environment.

Problems being caused

The water in Lake Okeechobee has been contaminated with nitrogen and phosphorus that it is considered too polluted to send directly south to the everglades like it used to, instead now all the polluted water is held in lake Okeechobee. The water is too polluted that is now has to be dumped into the Atlantic Ocean and Gulf of Mexico. This not only wastes drinking water, damages costal habitats, kills wildlife and contributes to toxic red tide which endangers individuals. This causes the everglades to become desperate for water meaning grasses could become dry.

How are wetlands being protected

The Everglades region is under a plan called the “Comprehensive Everglades Restoration Plan (CERP). This plans to restore and preserve the Everglades in Southern Florida while also managing water supplies and controlling floods…
Referred to as the “World’s largest ecosystem restoration effort” the CERP will cost over $7 billion and take more than 20 years to develop.

To protect the Everglades from further degradation caused by phosphorus:
• Farmers have implemented best management practices to reduce phosphorus entering before the water leaves the farm.
• The State and Federal governments have constructed about 57,000 acres of treatment wetlands (called storm water treatment areas/STA’s) that remove phosphorus before the water is discharged into the Everglades. This was a $1 billion effort to treat large volumes of water down a lower phosphorus level.
• The STA’s have permits that are needed under the Clean Water Act that limit how much phosphorus can be discharged.

Causes of Wetland degradation

  • Rapid population growth: The demand for land increases as more housing must be built, and more land is needed for agriculture/ food production – so wetlands are artificially drained to make space for this.
  •  Increased demand of recourses: Rapid population growth leads to an increased demand for water for domestic used as well as increased water for agriculture. This means wetlands are drained to be used as a source of water

•  Urbanisation: Building of roads, houses and infrastructure requires wetlands to be destroyed, pollution, disturbance if wildlife and changes rivers flow and channels

• Rising sea levels: Global warming has lead to rising sea levels meaning that wetlands are flooding more often and are being damaged.

• Invasive species: The introduction of non-indigenous species disrupts food chains and webs, therefore the ecosystem

Summary – Wetlands in Florida are being destroyed due too much water being pumped out and their resources being exploited. This is a problem as the everglades are very important as they provide many purposes.

34
Q

2)CASE STUDY : Mississippi river basin, flood management

A

Location:

Mississippi is a state located in the southeastern region of the United States. Bordered by Tennessee.

Facts:
Flooded in 1993
The river flows through 10 states
River basin is the 5th largest in the world.
Is the Largest river basin in the North American continent

Physical + human causes of the flood:

  • 400 – 750 % above the monthly average precipitation
  • Heavy snowfall in previous winter
  • Levees are poorly built
  • Development of urban areas along the river
  • Channelization of river St Louis causes problems downstream

Flood effects:

  • 43 people died
  • 72,000 homes flooded
  • 62,000 families evacuated
  • 70% of levees damaged
  • Two towns wrecked ( Valmeyer + Rhineland)
  • 25,000 km flooded

Responses:

  • Stone and earthen levees to raise the banks of the river
  • Holding dams to hold back water in time of flood
  • Lateral dykes to divert water away from the river
  • Straightening the channel to remove water speedily
  • Afforestation
  • Flood warning along the river
  • Valmever + Rhineland were relocated to higher ground
35
Q

CASE STUDY :South Africa, Cape Town- Water shortages,Day zero

A

Location: Cape town, South Africa

Situation:
3 years of drought (2015-2018) leading to three months away from running out of water meant that in January 2018 “Day Zero” was implemented.

April 12th 2018 was the largest ever recorded drought.

Water levels in the City’s dams declined from 71.9 percent in 2014 to 50.1 percent in 2015.

Causes of a drought:

  • High temperatures (low humidity, high evaporation)
  • Human activities (agriculture)
  • Low levels of precipitation

Effects of drought:

  • Increase wildfire risks
  • Increase in food prices
  • Less and limited food options
  • Less water available
  • Day zero created
  • Industry’s (food, wood, water) all suffer decreasing capita per person
  • Decrease transportation (ships)
  • Loss of life
  • Increase health problems
  • Tourism-The accommodation sector reported a decline in occupancy of 10%.
  • Agriculture- Agriculture water cut of 60% from 2017-1018 = smaller yield and an economic loss of $400million US dollars,13-20% drop in exports
  • -Economic- 37,000 jobs lost,50,000 people being pushed below the poverty line due to job losses, inflation and increases in the price of food

How have local communities participated? (Managing the situation)
The city attempted to urge residents to consume less than 50 litres of water a day and later on to 25 litres a day, as well as collect and reuse the showering and hand washing water to flush toilets and water plants.
Changes in tourism – in the city of 4 million, more than 1.5 million tourists are welcomed per year. Restaurants and hotels asked tourists and visitors to do their part to conserve. For example, at the One & Only Cape Town hotel, the staff removed bath plugs and started using filtered water in the pool, as well as installing water-saving shower heads.
Some sports facilities have installed buzzers to alert people in public if they linger for longer than 2 minutes.
Cape Town’s government increased the water tariffs and also enforced prohibition of over usage, as well as eliminating water usage for swimming pools, and lawn.

Is this management sustainable?
The attempt to consume less than 50 litres of water did not have an effect as only 41% of residents are using 87 litres a day.


Does the management of water provide access to safe, clean and affordable water?
Theses local solutions to manage water sustainability have all been attempts to reduce the amount of water consumed by the residents. The methods have not necessarily allowed residents to have access to safe and clean water. However, these short-term attempts to prevent and reduce the water consumption to ultimately limit the effects of the situation have been helpful on a local scale.

Solution:

  • Day Zero
  • Recycle water
  • Crop engineering
36
Q

CASE STUDY : The Great Lakes, Human pressures on lakes

A

Location:

Both lakes are found in North America, bordered by Ontario, New York, Pennsylvania, Ohio and Michigan. Their boundaries meet in the middle of the lake.

Holds 20% of the worlds fresh water.

Causes:
• Runoff pollution - This type of pollution occurs when rainfall washes fertilizer and manure spread on large farm fields into streams that flow intoLake Erie (89% responsible)
• Sewage integration into lakes

Effects:
• Step 6: Fish And Other Aquatic Life Forms Die.
• Step 3: Algal Blooms Occur.
• Step 1: Excessive Nutrients Enter Waterways.
• Step 2: Nutrients Help Develop Plant Growth. …
• Step 4: Algae Dies And Is Decomposed By Bacteria. …
• Step 5: Decomposition Of Algae Increases Biological Oxygen Demand.
• 11 million people depend on the lake
• In 2014 it left 400,00 people without drinking water for three days
• 620 square miles of the lake were coated.

Solutions:
• Reduce fertilizer use
• Reduce sewage runoff

37
Q

CASE STUDY : The Great Artesian Basin

A

Location: Australia

What is it: It is the largest and deepest basin in the world. The basin provides the only source offresh waterthrough much of inland Australia. The Basin underlies 22% of the continent.

Problems
•	Pollution:
- Agriculture
- Industry
- Landfill sites
- Domestic
- Sewerage
- Natural
 
Solutions – management
•	Desalination: Removing salt from sea water and making it potable.
✓ Provides many job opportunities
✗ Requires a lot of energy
✗ Is very expensive to run
  • Trade in Virtual water: Embedded water – water within products that are sold ie. cotton shirts (20 000 liters of water) or citrus fruits which require a lot of water to grow/ produce
  • Reduce leakages of pipes and irrigation channels: Overall allows for greater efficiency and reduce wastage of water
  • Recycle greywater: Reusing water that was used for washing vegetables to water plants
  • Drip irrigation: A method of irrigation that drips water specifically onto each plant, allowing for the greatest efficiency in irrigation.
  • Water metering: A method to measure the amount of water used and charging the owner accordingly. To incentivize people to recue water consumption

Summary: Uncontrolled flow from bores and open earth bore drains in the GAB threatens the health of important groundwater and the volume of water is decreasing.

38
Q

6)CASE STUDY : 3 Gorges dam, a multipurpose dam

A

Location: Hubei province, China
What is it: It is the world’s largest hydroelectricity dam

What are it’s purposes?

1) Power generation - There are several generators within the dam which use the potential energy stored in the water, to generate electricity. This is sold to many provinces around China. It is renewable energy. Chinas generation comes from coal (uses 40% of the world total) these less use of coal will reduce air pollution and risk of peoples health.
2) Flooding prevention - One of the main reasons that the Three Gorges dam was built was to prevent flooding further downstream. The need for a dam was highlighted in 1954 when people were killed as a result of flooding of the Yangtze River. Over a hundred thousand people were relocated to enable construction of the dam. This was viewed by many as an inconvenience. However, this dam is actually preserving many more people’s lives by reducing the risk of flooding.
3) Tourism - The Dam isn’t just designed to save lives and generate electricity, but it is also a very popular tourist attraction. As it is the world’s largest hydroelectric dam it attracts thousands of tourists every year. In addition tourism can now occur on the cruise ships passing through.
4) Cruise ship navigation – Easier for larger ships to navigate through as before the river flowed too fast, was too low, exposing rocks in the dry season. The new infrastructure will allow vessels up to 10,000 tones to pass through.
5) Seasons – influenced by the lake, the winter climate should become milder, wetter, increasing the length of the growing season.
6) Living standards – The many new settlements that have been created will have better housing with electricity and in time sewage, transport links and services

Negative impacts?

Environmental impacts - The dam has been designed to impact the environment as little as possible. It has meant that some ancient artifacts were lost, or are no longer accessible. However, it is stated that the impact on the environment is very small. The dam has also been designed using modern materials and techniques to reduce the risk of it being compromised during an earthquake or other natural disaster.
Costs - US$31.765 billion, really expensive, far larger than the original budget.
Displacement -Over a hundred thousand people were relocated to enable construction

Water pollution / erosion - Along with the river flowing, there is a large number of land experiencing erosion, which leads to tons of sands and pebbles into the Yangtze River and stay at the upstream and makes great water pollution about Yangtze River.

Migration – Relocation of 1.3 million people whose homes will be flooded by the construction of the dam. Although each family is given compensation is is not enough compared to what they lose.

Animal welfare – Endangered species such as the river dolphin and Yangtze sturgron have become extinct.

Durability – Concern that the dam could break due either to the sheer weight of water, to earthquakes, bad construction or terrorist activity.

Aesthetic - Sewage and rubbish are all allowed to flow in the river until treatment sites are built thus rubbish will be stuck behind the dam, meaning diseases.

Toxic waste – Factories that risk being flooded will release toxic waste