🌍 ✅CASE STUDY - Antarctica Flashcards

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

What does Antarctica store?

A

60% of the worlds fresh water

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

How does the continent change in winter?

A

It doubles in size

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

When was Antarctica discovered?

A

By 1821, by sealers

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

When was the heroic exploration of Antarctica?

A

1895-1922

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

What is an ice sheet?

A

Results from small inputs of snow and frost (exceeding ablation rates) over a very long time

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

What is ablation?

A

The opposite of accumulation, refers to all processes that remove snow, ice and water from the glacier or snowfield

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is a nunataks?

A

An exposed, rock element of a ridge, mountain or peak not covered by snow or ice within or at the edge of an ice field or glacier.
Also known as GLACIAL ISLANDS

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

What is the Antarctic convergence zone?

A

A natural boundary separating 2 distinct hydrological regions/ areas of distinct climate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Why do Antarctic waters freeze at such low temperatures?

A

Because they are so salty

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

What happens at the Antarctic convergence zone?

A

Warm surface water and cold Antarctic water meet

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

What is global thermohaline circulation?

A

When water moves along gradients

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

How does water have a tendency to move?

A

From warm to colder areas

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

How much of the land is ice free?

A

Less that 5%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

what do mean winters range from?

A

-9 to -68 degrees C

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

What are claims of Antarctica land founded on?

A
  • Discovery and exploration of areas
  • Proximity to Antarctica
  • Seeking control of natural resources
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

When was the Antarctica Treaty created?

A

1959, enforced from 1961

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

How many countries have now signed the treaty?

A

46

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

WHat IS the Antarctic Treaty System?

A

A combination of the Antarctic Treaty and other related systems
- hold anual meetings

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What are the main intentions of the treaty?

A

-Antarctica shall be used for peaceful purposes only
-Antarctica should be a site of scientific investigation
-No nation would be obligated to surrender its claim, and no new claim could be made
REGARDED AS MOST SUCCESFUL PIECE OF LEGISLATION

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What does the environmental protocol of the treaty state?

A
  • Commits the parties to comprehensive protection of the Antarctic environment
  • Designated Antarctica as a natural reserve devoted to peace and science
  • Bans all commercial mineral resource activity
  • Requires assessment of impacts of any activities
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

when will the environment protocol be revised?

A

2048

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

How many environmental NGOs work in coalition to protect Antarctica?

A

Over 1000

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

What human activities threaten Antarctica?

A

Scientific research
Mineral exploitation
Fisheries + whaling
Tourism

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

How many permanent scientific bases exist on Antarctica?

A

40 - means of resources flown or shipped in

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

How has scientific research threatened the environment?

A

In 1989, an Argentine ship ran around and released 25,000 gallons of fuel into the sea.
Similar events have occurred at Russians and US bases

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

Where have coal seams been discovered?

A

Along coastline and in the mountains

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

Why has activity at coal seams so far been deterred?

A

It isn’t commercially viable, but may be needed for future demand

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

Where has a great potential for oil?

A

The Weddel and Ross seas, on the continental shelf

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

How many barrels of oil are estimated to be in the Weddel and Ross seas?

A

50 bn

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

What is the only large scale exploitation in Antarctica?

A

Fishing

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

What are the impacts of fishing in Antarctica?

A
  • Over-fishing of target species
  • Effects on species that depend on target species
  • Killing of other species accidentally caught
  • Destruction of habitat by equipment
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

what is the biggest species of concern in Antarctic fisheries?

A

Krill

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

Why are krill such an important species?

A

they feed on phytoplankton, and are then eaten by a wide range of species

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

what has declined due to the over fishing of krill?

A

the decline in some penguin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

Why is krill being fished?

A

It is used to feed salmon farms and their enzymes have pharmaceutical uses

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
36
Q

What is CCAMLR?

A

Commission for the Conservation of Antarctic Marine Living Resources

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
37
Q

What do CCAMLR do?

A

Control the commercial fisheries in the Southern Ocean, taking into account the species being fished and their prey and predator species. They monitor all fishing in the region

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
38
Q

What must all vessels in the CCAMLR region participate in?

A

Monitoring systems to report krill catches

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
39
Q

Why are pharmaceutical companies interest in Antarctic species?

A

For their anti-freeze protein in their blood, and for how fish slow their heartbeat to save energy in cold environments

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
40
Q

Who banned whaling in the Antarctic?

A

the International Whaling Commission

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
41
Q

What is the limit of viability?

A

The amount of meltwater an ice shelf can take before it begins to weaken and retreat

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
42
Q

What area does the Antarctic Treaty apply to?

A

60 degrees south

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
43
Q

What does the Treaty not apply to?

A

the seas

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
44
Q

When was the Whaling Moratorium introduced?

A

1982

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
45
Q

How were whales previously hunted?

A

Using harpoons and specialist whaling boats

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
46
Q

What did Greenpeace do for Antarctic whales?

A

they launched an anti-whaling campaign shortly after the organisation formed, and Greenpeace ships began confronting whaling fleets -demand for whales began to rapidly decrease

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
47
Q

Which countries ignore the moratorium?

A

Japan
Iceland
Norway

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
48
Q

How many whales does Japan hunt each year for “research”?

A

300

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
49
Q

How much money can 1 whale make?

A

$1 million

50
Q

When was the Southern Ocean Whale Sanctuary set up?

A

1994

51
Q

Who set up the Southern Ocean Whale sanctuary?

A

The International Whaling Commission

52
Q

What is the aim of the whale sanctuary?

A

To benefit the long term conservation of whales

53
Q

How does the whale sanctuary benefit whales?

A

By facilitating recovery of depleted whale populations by protecting important areas

54
Q

How does the whale sanctuary benefit surrounding nations economically?

A

Provides economic benefits to range of states by providing opportunities to develop non-lethal economic use of ecotourism and whale watching

55
Q

How has scientific whaling changed over the years?

A

It has increased

56
Q

What is the Madrid Protocol?

A

The protocol on environmental protection for the Antarctic treaty, protects natural reserves

57
Q

How successful has the Madrid protocol been?

A

Mining is prohibited and minerals are protected, so the environment is preserved, and toxic chemical are prohibited from being discharges into the sea

58
Q

Why is the Madrid protocol needed?

A

To provide comprehensive protection for the environment after Russian bases were dumping waste

59
Q

How many parties have agreed to the Madrid Protocol?

A

34, with a further 11 signed but not ratified

60
Q

What is the Convention for the Conservation of Antarctic Seals?

A

A convention for promoting and achieving the protection, scientific study and rational use of seals

61
Q

When did the seal convention come into place?

A

1978
After seals were killed by clubbing for their pelts, young seals wanted

62
Q

What has happened since the seal convention came into place?

A

Seal populations have recovered, proof that’s CCAS is a successful international agreement

63
Q

why is the seal convention needed?

A

To recognise that the stocks of Antarctic seals are an important living resource and should not be exploited and depleted

64
Q

How many parties have agreed to the seal convention?

A

17

65
Q

What is the Commission for the Conservation of Antarctic Marine Living Resources?

A

An international convention with the objectives of conserving Antarctic marine life, in response to increasing commercial interest in krill

66
Q

When was the Conservation of Marine Living resources brought in?

A

1982
The same year as the whaling ban

67
Q

How successful has CCAMLR been?

A

seabird mortality has been reduced, protected areas have been established, vulnerable ecosystems managed and challenges of illegal fishing addressed

68
Q

Why was CCAMLR set up?

A

Because there was increasing commercial interest in krill

69
Q

Who enforces CCAMLR?

A

All vessels are monitored and the policy is implemented by all 25 countries

70
Q

What is ASOC?

A

Antarctic and Southern Ocean Coalition

71
Q

Who does ASOC represent?

A

Brings together 30+ groups = a wide scope, includes WWF and Wildlife Organisations

72
Q

Why was ASOC set up?

A

A US lawyer exposed a secret minerals framework for Antarctica

73
Q

What categories are ASOC’s current works split into?

A
  • Environmental Protection
  • Wildlife Conservation
  • Antarctic Governance
74
Q

How does ASOC plan to tackle Antarctic climate change issues?

A

Through public advocacy, promoting adaptation strategies, and climate science

75
Q

What do ASOC seek in terms of protection?

A

the highest possible level of environmental protection for the Antarctic region and for all wildlife

76
Q

Which area do ASOC want to be protected?

A

The Ross Sea and areas for species such as Minkle whales and krill

77
Q

How important is ASOC’s work in the Ross Sea?

A

It is striving for it to be a Marine Protected Area and maintaining its diversity and abundant marine life. Almost untouched as it was thousands of years ago, preserved

78
Q

Antarctiva is the driest continent because…

A

Its anual precipitation is 50mm - polar desert

79
Q

Antarctica is the windiest continent because…

A

SMooth Antarctica surface allows for fast winds not slowed by surface friction

80
Q

Antarctica is the coldest continent because…

A

Avg temperature is -49oC (feels colder due to wind chill)

81
Q

WHy does the ANtacrtic Convergence Zone vary seasonally?

A

Due to the expansion and contraction of sea ice

82
Q

2 main factors have increased the threat Antarctica faces

A

Technology - we can now get there
Greater demand for resources - exploiting Antarctica is now economically viable

83
Q

What are the 4 main threats Antarctica faces?

A

Climate change
Fishing and Whaling
Mineral Exploitation
Tourism and SCientifc Research

84
Q

CLIMATE CHANGE: Which parts of Antarctia are cooling - which parts aren’t?

A

East cooling - not near the coastal parts (ocean a radiator)
West melting - likely the East will grow as the West melts

85
Q

CLIMATE CHANGE: What is the melting of the Antarctic Penisula causing?

A

Positive dieback - loss of ice sheleves has caused ice to speed up in land

86
Q

CLIMATE CHANGE: How many tonnes of ice gave been lost each year since 1993 - impact on gobal sea levels?

A

100 bn tonnes each year
Increased global sea levels by 0.2mm a year

87
Q

CLIMATE CHANGE: What will partly offset the increase in the rate of ice melt?

A

Increased snow fall

88
Q

CLIMATE CHANGE: By how much has the Southern Ocean temperatures increased since 1995?

A

1C

89
Q

CLIMATE CHANGE: What impacts has the Southern Ocean warming more quickly that the oceans globally had?

A
  • Changed distribution of penguin colonies
  • Krill populations fallen by up to 80% in last 40 years
  • Melting snow = increased plant colonialisation
  • Ocean acidification
90
Q

CLIMATE CHANGE: Althrough the melting of ice shelves doesnt contribute to sea level rise, how do they cause it?

A

Rate of flow of glaciers behind the ice shelves increases
These glaciers melt = sea levels rise

91
Q

CLIMATE CHANGE: Why might sea ice be expanding on the eastern side of Antarctica?

A

More snow and rain layering Southern Ocean with a cooler, denser top
More storms = local waters less salty, raises temp of ice formation
Melting of continental land ice = icebergs - contributes to sea ice formation

92
Q

CLIMATE CHANGE: What is the problem with carbonic acid that would be created with increased atmospheric carbon dioxide?

A

Oceans would become a little more acidic
Could potentially corrode unprotected shells and skeletons - problems with food chain

93
Q

CLIMATE CHANGE: Why wou ld some argue global trade/ globalisation was reponsidble for climate change?

A

Global trade has increased the movement of goods - increased fossil fuel consumption
(Antarctica doesn’t benifit from this trade AT ALL, it is instead impacted by the pollution and waste generated from the trade)

94
Q

FISHING AND WHALING: Why are krill so heavily fished around Antarctica?

A

Fishing restrictions implemented in Northern hemisphere 2007 - catch allowance increased by near;y 600%

95
Q

FISHING AND WHALING: Problems with overfishing of krill?

A

Impacts food chain
Increases phytoplankton

96
Q

FISHING AND WHALING: When did whaling begin in this area?

A

1904

97
Q

FISHING AND WHALING: When was commercial whaling banned?

A

1986

98
Q

MINERAL EXPLOITATION: What could demand for minerals globally cause in the future?

A

Conflict - many countries already put in claims as safeguarding measures

99
Q

TOURISM AND SCIENTIFIC RESEARCH: What disturbs bird population + what will worsen this?

A

PLanes - worsened if Australia open its runway for tourism

100
Q

TOURISM AND SCIENTIFIC RESEARCH: What are the risks posed from tourims?

A

Contamination + spread of diseases due to inc tourist number and little management (as not owned by one nation)

101
Q

TOURISM AND SCIENTIFIC RESEARCH: Positives of torism

A

Profits from cruises donated to NGO’s
Provides future protection for Antarctica

102
Q

IWC: What caused the issue of whaling to be first publicly broadcasted + how did public respond?

A

Greenpeace protestors confronting whaling fleets on high seas - demand for whale began to rapidly decrease

103
Q

IWC: What is the purpose of the International whaling Commision?

A

Intergovernmental organisation
Regulates whaling, ensures whale populations are at sustainable level
Imposed Global Whailing Moratorium

104
Q

IWC: When was Global Whaling Moratorium imposed?
WHy are whales still allowed to be killed?

A

1982 - for scientific purposes

105
Q

IWC: Advantages of the moratorium?

A
  • Everyone in whaling industry lost out equally - NO BIAS
    Whale pop has been able to recover
    Easy to spot someone whaling
    Raises awareness
106
Q

IWC: Disadavatges of the moratprium?

A

HArd to monitor the whole of the Southern Ocean
SOme argue that everuone has the right to use Antarctica as a global common
Greenpeace argues poorly enforced

107
Q

IWC: Problems of Japan’s abuse of the system

A

Other nations may follow
Around 300 whales killed each year

108
Q

IWC: Long term aims of the Southern Ocean Whale Sanctuary

A

Deevelop non-letha research
Provide economic benefits i.e whale watcjing
Increase public awareness of vulnerbaility of marine ecosystems
Allow whale pop by protecting their feeding and breeding grounds

109
Q

IWC: Success of the Southern Ocean Whale Sanctuary

A

Covers most of the Southern Ocean
Non-lethal research means less whales need to be killed in future
Raises public awareness
Protects breeding + feeding grounds
Finds other economic uses for whales - gives ex-whalers a job

110
Q

IWC: Failure of Southern Ocean WHale Sanctuary

A

Hasnt stopped Japan as doesnt protect against scientific whailing
Doesn’t protect whales outside protection areas
Difficult to monitor such a large area
Only protects areas that are importaht now which may cange with cliate change, leaving whales unprotected

111
Q

WHy have NGO’s like SCAR and ASOC been set up?

A

DO the work gov can’t/ won’t do
Don’t have an agnda

112
Q

WHat does SCAR stand for?

A

Scientific Comittee on Antarctic Research

113
Q

What is the purpose of SCAR

A

In charge of initiation, promotion, and coordination of research on Antarctica
Provide independent scientific advice to inform the Antarctic Treaty System

114
Q

ASOC: WHy was the ANtarctic and Southern Ocean Coalition set up - when?

A

1978 - Created so NGO’s could have a greater influence on governments at the world stage

115
Q

ASOC: Examples of NGOs involved

A

Over 30 including:
WWF,
Greenpeace
Friends of the Earth

116
Q

ASOC: What does their work mainly focus on?

A

Environmental protection
Monitors environmental change
Ensures legislation is being kept up

117
Q

ASOC: Successes

A

ON:Y NGO working full time to preserve Antarctica + Southern Ocean
Powerful as it consists of 30 NGOs
Helps raise public awareness about threats to Antarctica and encourages government involvement

118
Q

ASOC: Failures

A

Difficult to monitor whole of SOuhern Ocean
Worl on lots of projects - energy not focused in one place

119
Q

ASOC: WHy are they so interested in protecting the Ross sea?

A

Important for the diverse ecosystem present
50% of Ross Sea killer whales

120
Q

WHat legislation protects Antarctic minerals

A

1991 Protocol on Environmental Protection on the Antarctic Treaty

121
Q

What is the 1991 Protocol on Environmental Protection on the Antarctic Treaty key points?

A

Banned all mining
Rules on:
- Regulating waste disposal
- Preventing pollluion
Protecting plants and animals - environmental impact assessment reuired before new activities conducted

122
Q

Why is it difficult to preventthe damage caused?

A

Most damage not caused in Antarctica
i.e pollution or Ghg’s