The Arctic is a polar region located at the northernmost part of Earth. The Arctic consists of the Arctic Ocean, adjacent seas, and parts of Canada, Danish Realm (Greenland), northern Finland (Lapland), Iceland, northern Norway, Russia, northernmost Sweden and the United States (Alaska). Land within the Arctic region has seasonally varying snow and ice cover, with predominantly treeless permafrost containing tundra. Arctic seas contain seasonal sea ice in many places.
Sea ice arises as seawater freezes. Because ice is less dense than water, it floats on the ocean's surface. Sea ice covers about 7% of the Earth's surface and about 12% of the world's oceans. Much of the world's sea ice is enclosed within the polar ice packs in the Earth's polar regions: the Arctic ice pack of the Arctic Ocean and the Antarctic ice pack of the Southern Ocean. Polar packs undergo a significant yearly cycling in surface extent, a natural process upon which depends the Arctic ecology, including the ocean's ecosystems. Due to the action of winds, currents and temperature fluctuations, sea ice is very dynamic, leading to a wide variety of ice types and features. Sea ice may be contrasted with icebergs, which are chunks of ice shelves or glaciers that calve into the ocean. Depending on location, sea ice expanses may also incorporate icebergs.
In glaciology, an ice sheet, also known as a continental glacier, is a mass of glacial ice that covers surrounding terrain and is greater than 50,000 km2 (19,000 sq mi). The only current ice sheets are in Antarctica and Greenland; during the Last Glacial Period at Last Glacial Maximum, the Laurentide Ice Sheet covered much of North America, the Weichselian ice sheet covered Northern Europe and the Patagonian Ice Sheet covered southern South America.
South Georgia is an island in the South Atlantic Ocean that is part of the British Overseas Territory of South Georgia and the South Sandwich Islands. It lies around 1,400 kilometres (870 mi) east of the Falkland Islands. Stretching in the east–west direction, South Georgia is around 170 kilometres (106 mi) long and has a maximum width of 35 kilometres (22 mi). The terrain is mountainous, with the central ridge rising to 2,935 metres (9,629 ft) at Mount Paget. The northern coast is indented with numerous bays and fjords, serving as good harbours.
This glossary of climate change is a list of definitions of terms and concepts relevant to climate change, global warming, and related topics.
The Larsen Ice Shelf is a long ice shelf in the northwest part of the Weddell Sea, extending along the east coast of the Antarctic Peninsula from Cape Longing to Smith Peninsula. It is named after Captain Carl Anton Larsen, the master of the Norwegian whaling vessel Jason, who sailed along the ice front as far as 68°10' South during December 1893. In finer detail, the Larsen Ice Shelf is a series of shelves that occupy distinct embayments along the coast. From north to south, the segments are called Larsen A, Larsen B, and Larsen C by researchers who work in the area. Further south, Larsen D and the much smaller Larsen E, F and G are also named.
McMurdo Sound is a sound in Antarctica. It is the southernmost navigable body of water in the world, and is about 1,300 kilometres (810 mi) from the South Pole.
A polar ice cap or polar cap is a high-latitude region of a planet, dwarf planet, or natural satellite that is covered in ice.
A Heinrich event is a natural phenomenon in which large groups of icebergs break off from the Laurentide Ice Sheet and traverse the Hudson Strait into the North Atlantic. First described by marine geologist Hartmut Heinrich, they occurred during five of the last seven glacial periods over the past 640,000 years. Heinrich events are particularly well documented for the last glacial period but notably absent from the penultimate glaciation. The icebergs contained rock mass that had been eroded by the glaciers, and as they melted, this material was dropped to the sea floor as ice rafted debris forming deposits called Heinrich layers.
Thwaites Glacier, nicknamed the Doomsday Glacier, is an unusually broad and vast Antarctic glacier flowing into Pine Island Bay, part of the Amundsen Sea, east of Mount Murphy, on the Walgreen Coast of Marie Byrd Land. Its surface speeds exceed 2 kilometres per year near its grounding line. Its fastest-flowing grounded ice is centered between 50 and 100 kilometres east of Mount Murphy. In 1967, the Advisory Committee on Antarctic Names named the glacier after Fredrik T. Thwaites (1883–1961), a glacial geologist, geomorphologist and professor emeritus at the University of Wisconsin–Madison.
An Inconvenient Truth is a 2006 American documentary film directed by Davis Guggenheim about former United States Vice President Al Gore's campaign to educate people about global warming. The film features a slide show that, by Gore's own estimate, he has presented over 1,000 times to audiences worldwide.
Peter T. Doran, Ph.D. is Professor of Geology and Geophysics and John Franks Endowed Chair at Louisiana State University. Prior to 2015, he was faculty in Earth and Environmental Sciences at the University of Illinois at Chicago.
Evangelical environmentalism is an environmental movement in the United States in which some Evangelical Christians have emphasized biblical mandates concerning humanity's role as steward and subsequent responsibility for the care taking of Creation. While the movement has focused on different environmental issues, it is best known for its focus of addressing climate action from a biblically-grounded theological perspective.
The Antarctica cooling controversy was the result of an apparent contradiction in the observed cooling behavior of Antarctica between 1966 and 2000, which became part of the public debate in the global warming controversy, particularly between advocacy groups of both sides in the public arena including politicians, as well as the popular media. In his novel State of Fear, Michael Crichton asserted that the Antarctic data contradicted global warming. The few scientists who have commented on the supposed controversy state that there is no contradiction, while the author of the paper whose work inspired Crichton's remarks has said that Crichton misused his results. There is no similar controversy within the scientific community, as the small observed changes in Antarctica are consistent with the small changes predicted by climate models, and because the overall trend since comprehensive observations began is now known to be one of warming.
Students on Ice Foundation is a Canadian charitable organisation that leads educational expeditions to the Arctic and Antarctic for international high school and university students. Its mandate is to provide youth, educators and scientists from around the world with learning and teaching opportunities in the polar regions, with the goal of fostering an understanding of, and commitment to building a more sustainable future.
Climate fiction is literature that deals with climate change. Generally speculative in nature but scientifically-grounded, works may take place in the world as we know it or in the near future. The genre frequently includes science fiction and dystopian or utopian themes, imagining the potential futures based on how humanity responds to the impacts of climate change. Rationales for the genre typically assume knowledge of anthropogenic effects—human-altered climate as opposed to weather and disaster more generally—although broader definitions exist. Technologies such as climate engineering or climate adaptation practices often feature prominently in works exploring their impacts on society.
Temperature change due to climate change in Antarctica is not stable over the whole continent. West Antarctica is warming rapidly, while the inland regions are cooled by the winds in Antarctica. Water in the West Antarctic has warmed by 1 °C since year 1955. Further increase in temperature in water and on land will affect the climate, ice mass and life on the continent and have global implications. Present-day greenhouse gas concentrations are higher than ever according to ice cores from Antarctica, which indicates that warming on this continent is not part of a natural cycle and attributable to anthropogenic climate change.
Laudato si' is the second encyclical of Pope Francis. The encyclical has the subtitle "on care for our common home". In it, the pope critiques consumerism and irresponsible development, laments environmental degradation and global warming, and calls all people of the world to take "swift and unified global action."
Climate change art is art inspired by climate change and global warming, generally intended to overcome humans' hardwired tendency to value personal experience over data and to disengage from data-based representations by making the data "vivid and accessible". One of the goal of climate change art is to "raise awareness of the crisis", as well as engage viewers politically and environmentally.
K.A. Colorado, is an American-Canadian visual artist, painter, and sculptor best known for his representational work depicting climate change, deep cold, and the environment. He was the Artist-in-Residence for the National Oceanic and Atmospheric Administration, and is the creator of the Ice Core Sculpture Series depicting Polar scientific studies, material, and DNA from around the world.
