A continent at the South Pole surrounded by the Southern Oceans, full of penguins
Antarctica
Unique environment and climate
Covers an area about 14 million sq km, larger than Europe
Contains 90% of all the ice on Earth and 70% of all the Earth's fresh water
Global commons
Antarctica and the Southern Ocean as far north as the Antarctic Convergence
There's very little available water in Antarctica for plants to grow
Antarctica's climate is mainly made up of sparse mosses and lichens, and only two species of flowering plants grow
The terrestrial ecosystem in Antarctica is very fragile and easily damaged
At the Antarctic Convergence, there's upwelling of nutrient-rich cold water which provides plenty of food for krill and forms the basis of the whole Southern Ocean food chain
There's abundant sea life in Antarctica, e.g. fish, seals and whales. Birds like albatrosses and penguins survive on the sea life
The marine ecosystem in Antarctica is also fragile - the population of one species decreases it affects other species
Four Main Threats to Antarctica
Climate Change
Fishing and Whaling
Climate Change
Areas along the west coast of Antarctica have warmed by as much as 3°C in the past five decades, one of the fastest temperature rises on Earth
Warming has caused the ice shelves to melt, changing the Antarctic environment dramatically
Species like Adélie penguins have declined as the sea ice has melted, while more open-water species like chinstrap penguins have increased
Antarctic krill population has declined by around 80% since the 1970s as the sea ice has melted, affecting krill-dependent species
Melting sea ice has an impact on global sea levels, which have risen by around 3 mm a year since the 1990s
Climate change also causes ocean acidification around Antarctica, which can be devastating to Antarctica's plankton
Fishing and Whaling
Over-fishing threatens many species, e.g. the Patagonian toothfish and Antarctic krill
Illegal fishing is difficult to monitor and regulate
Other species like albatrosses and petrels get caught in fishing lines and drown
Whaling significantly decreased the Antarctic whale population in the mid-20th century, which is now slowly recovering
Increased shipping and air travel to Antarctica leads to water and air pollution, and the introduction of invasive species
Scientific and environmental research in Antarctica requires a lot of infrastructure, which creates waste
Antarctic Treaty (1959)
An agreement about how to sustainably manage Antarctica's ecosystems, signed by 53 countries
Key rules in the Antarctic Treaty
Antarctica should only be used for peaceful purposes - no military activities or weapons allowed
Countries should cooperate on scientific research in Antarctica by sharing plans, researchers and results
Antarctica should remain in the global commons - individual countries cannot make a claim to it
Under the Antarctic Treaty, all activities and equipment in Antarctica can be inspected at any time, but inspections don't occur very often
Protocol on Environmental Protection to the Antarctic Treaty (1991)
Focuses on protecting Antarctica's fragile environment, banning mining and setting rules to protect plants, animals and prevent pollution
There is no system to ensure all countries abide by the rules in the Antarctic Treaty and Protocol, and disputes between countries can be slow to resolve
International Whaling Commission (IWC)
Responsible for regulating whaling and ensuring the whale population is at a sustainable level
United Nations Environment Programme (UNEP)
The main UN agency that governs the world's environment, including in Antarctica through the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR)
The effectiveness of CCAMLR is limited by individual countries protecting their own interests
Whaling Moratorium
Banned all commercial whaling in 1982
NGOs
Play an important role in monitoring and enforcing rules in Antarctica, e.g. the Antarctic and Southern Ocean Coalition (ASOC)
ASOC successfully campaigned to make Antarctic Treaty meetings more transparent and allow NGO attendance
ASOC monitors environmental changes in Antarctica and checks whether countries are following the rules
Global governance of Antarctica
Affects people and places around the world, e.g. informing efforts to combat climate change, regulating economic growth, enabling scientific exploration, and allowing safe tourism