ACUATICO.El increase in global temperatures will accelerate the melting of glaciers and ice sheets and cause earlier snowmelt in rivers and lakes. DIE ANIMALESSe expected current rates of sea level rise increase as a result of thermal expansion of the oceans and melting of most mountain glaciers and the partial melting of the ice sheets in western Antarctica and Greenland. The consequences include loss of wetlands and barrier islands along the coast, and an increased risk of flooding in coastal communities. Areas low, as the coastal region of Gulf of Mexico and estuaries like the Chesapeake Bay are particularly vulnerable.
TERRESTRESSe expected that the increase in global temperatures disrupt ecosystems and cause loss of species diversity, as species die that can not adapt. The first comprehensive assessment of extinction risk from global warming found that more than one million species could be committed to extinction by 2050 if not reduced global warming pollution. Some ecosystems, including alpine meadows in the Rocky Mountains and tropical forests and mangroves, are likely to disappear because new warmer local climates or sea level rise in the costa.Un recent study of almost 2,000 species of plants and animals found a movement toward the poles at an average rate of 3.8 miles per decade. The study also found that species of the alpine area were moving vertically at a rate of 20 feet per decade in the second half of the twentieth century. The most recent IPCC report found that approximately 20 to 30% of plant and animal species assessed so
time probably most at risk of extinction if global average temperature increases over 2.7 to 4.5 degrees Fahrenheit. Some polar bears are drowning because they have to swim longer distances to reach the floating ice chunks. The U.S. Geological Survey has predicted that two thirds of the subpopulations of polar bears in the world will be extinct by mid century the Arctic ice cap melting. In the Olympic Mountains of Washington, has invaded the subalpine forest to alpine meadows at higher elevations. In Bermuda and other places, mangrove forests are being lost. In areas of California, marine species from the coast are moving northward, probably in response to warmer temperatures in the ocean and air. Over the past 25 years, some penguin populations have declined 33% in parts of Antarctica due to reductions in winter habitat on the sea ice. The ocean will become more acidic by carbon dioxide emissions. Due to this acidification, species with hard shells of calcium carbonate are vulnerable, such as coral reefs, which are critical for ocean ecosystems. Scientists predict that an increase of 3.6 degrees Fahrenheit in temperature exterminate 97% of coral reefs in the world.
Sources: http://www.nrdc.org/laondaverde/globalWarming/fcons.asp
http://www.nrdc.org/laondaverde/globalWarming/fcons.asp
http : / / www.nrdc.org / laondaverde / globalwarming / fcons.asp 
http://www.nrdc.org/laondaverde/globalWarming/fcons.asp
http://www.nrdc.org / laondaverde / globalwarming / fcons.asp
http://www.nrdc.org/laondaverde/globalWarming/fcons.asp http://www.nrdc.org / laondaverde / globalwarming / fcons.asp
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