Climate Change

Question 1

Physical causes of climate change X5

Answer 1

-volcanos
-sunspot activity
-milankovitch theory of eccentricity
-axial obliquity
-melting muskeg

Question 2

Physical causes of volcanos X3

Answer 2

-CO2 release green house effect
-sulfur dioxide release
-ash if reaches stratosphere blown around creates cooling

Question 3

Sunspot activity

Answer 3

11 year cycle
Periods where sun emits more energy = increased brightness and energy received by earth

Question 4

Milankovitchs theory of eccentricity

Answer 4

Earths orbit becomes more elliptical and can cause cooling and warming

Question 5

Axial obliquity

Answer 5

Changes in the angle of earths axis and causes changes in global climate patterns

Question 6

Melting muskeg

Answer 6

Summer months in arctic when top layer melts creating marshy muskeg and due to permafrost layer there is no where to drain so vegetation decays in water and releases methane gas

Question 7

Human causes of climate change X 4

Answer 7

-CO2
-Nitrous oxides
-methane gas
-CFC’s

Question 8

Human causes -CO2
X3 reasons

Answer 8

-fossil fuels burnt and increase in population increases demand for devices

-increased car ownership, more cars sitting in traffic jams releasing fumes

-deforestation releases CO2 when burnt to clear area quickly

Question 9

Human causes - Methane
X2 reasons

Answer 9

-landfill sites due to decay and higher population means more waste

-increase in population increases demand for beef and belching cows release methane

Question 10

Human causes - Nitrous oxides
X2 reasons

Answer 10

-more cars on roads due to population emit exhaust fumes

• rising food demand increases production of fertilisers

Question 11

Human causes - CFC
X2 reasons

Answer 11

• incorrect disposal of refrigerators as insulation of shredded releases cfcs

-rising temperatures increases demand for air conditioning in which coolants used create cfcs

Question 12

Impacts of climate change LOCAL
X3

Answer 12

-increased rainfall
-temperature increase
-rising sea level

Question 13

Impacts of climate change GLOBAL
X3

Answer 13

-sea level rise
-extreme weather
-disease

Question 14

Impacts of climate change
-increased rainfall
X4

Answer 14

-flooding will destroy houses and transport
-hard to grow crops
-tourism decrease
-sewage overflow causes disease

Question 15

Impacts of climate change
- temperature increase
X3

Answer 15

-heatwaves increasing heat stroke pressuring services
-less snow means less tourism for winter sports
-mosquitos migrating spreading malaria

Question 16

Impacts of climate change
-rising sea level LOCAL
X3

Answer 16

-coastal erosion destroying homes displacing people
-lower coastal population lowers workers for tourism
-coastal erosion leads to loss of habitats

Question 17

Impacts of climate change
-sea level rise GLOBAL
X3

Answer 17

-low lying coastal areas (Bangladesh) will experience large scale displacement
-fish and coastal animals effected
-loss of tourist income

Question 18

Impacts of climate change
-extreme weather
X3

Answer 18

-mass migration of people (southern USA)
-damaged housing effecting businesses
-increase in intensity and frequency of storms (USA)

Question 19

Impacts of climate change
-disease
X3

Answer 19

-increased temps =migration of mosquitos
-I’ll health pressuring services
-overflowing sewage

Question 20

Positives of climate change
X3

Answer 20

-farmers can diversify =less imported food
-reduced heating bills in cost of living crisis
-more tourism

Question 21

Management strategies of climate change LOCAL & INTERNATIONAL
X4 + efficiency

Answer 21

-promotion of energy efficient products (lightbulbs) = dimmer so many don’t use

-reduce reuse recycle (10p carrier bags) = massively reduced waste in production

-low emission cars (electric/hybrid more fuel efficient) = too expensive

-renewable energy (wind turbines) =great as in 2020 97% of Scotlands electricity was powered by renewables

Question 22

management strategies of climate change INTERNATIONAL
X2 + efficiency

Answer 22

-Kyoto protocol international agreement linked to UN convention on climate change = agreed to cut emissions by 5% bellow 1990 levels

-Paris agreement 2015 aimed to keep climate change levels below 2°c = governments agreed to report back every 5 years