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The Earth's icy poles, sensitive to changes in climate themselves, also have an enormous impact on the world's environment. Scientists worked to better understand these remote regions in unprecedented ways during the International Polar Year, March 2007-March 2009. As Polar Year Ends, Researchers Dig Into the Data April 10, 2009 UPDATE A period of intensive study of the Earth's polar caps, called the International Polar Year, ended in March, leaving researchers with a bounty of data to sort through to help inform the next generation of polar research. The mission of the IPY was to get a clearer picture of what is happening at the poles, and how they interact with the land, oceans and atmosphere, in order to improve the scientific understanding of how they might impact the global climate and societies in the future. Greenland Residents Detect Sea Changes REPORT Residents of Greenland's west coast say they are feeling the effects of rising sea temperatures in the fishing and tourism industries. NewsHour correspondent Spencer Michels reports on the research into whether the changes are climate change-related. Scientists Plot Pollutants' Path at the Arctic REPORT The Arctic is a receptacle of the planet's air pollutants and a coordinated international effort is geared toward learning more about pollutants' effects at the top of the globe. Slide Show: Learn more about some of the Arctic field studies here.	Main: Polar Discoveries   Researching the Poles   Environmental Impacts   Antarctica: Who's in Charge?   Slide Show: Dry Valley Organisms   Tools of Polar Research   Profiles of Researchers   Archive   Lesson Plan   Exploring Polar Oceanography   Research and Tourism in Antarctica The Global Warming Debate In-depth coverage of global warming, related research and policy decisions International Polar Year More about the IPY, research projects, and educator tools

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