A few selected findings on Climate Change

In Alaska, Western Canada, and Eastern Russia average winter temperatures have increased as much as 4 to 7°F (3-4°C) in the past 50 years, and are projected to rise 7 to 13°F (4-7°C) over the next 100 years. Arctic summer sea ice is projected to decline by at least 50 percent by the end of this century with some models showing near-complete disappearance of summer sea ice. This is very likely to have devastating consequences for some arctic animal species such as ice-living seals and for local people for whom these animals are a primary food source. At the same time, reduced sea ice extent is likely to increase marine access to some of the region’s resources. Warming over Greenland is projected to lead to substantial melting of the Greenland Ice Sheet, contributing to global sea-level rise at increasing rates. Over the long term, Greenland contains enough melt water to eventually raise sea level by about 7 meters (about 23 feet). Should the Arctic Ocean become ice-free in summer, it is likely that polar bears and some seal species would be driven toward extinction. Arctic climate change presents serious challenges to the health and food security of some Indigenous Peoples, challenging the survival of some cultures. Many coastal towns and facilities around the Arctic face increasing risks from erosion and flooding due to rising sea levels, decreased sea ice, and thawing coastal permafrost. Over the next 100 years, climate change is expected to accelerate, contributing to major physical, ecological, social, and economic changes, and the Assessment has documented that many of these changes have already begun.
source: Artic is warming at nearly twice the rate as the rest of the Globe.Cross-Ref: Climate Change See also XlnkS6BA

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