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Issues: Global Warming
Each year from 1998 through 2007 ranks among the top 25 warmest years on record for the United States, according to the National Oceanic and Atmospheric Administration. Scientists say that the earth could warm by an additional 7.2 degrees Fahrenheit during the 21st century if we fail to reduce emissions from burning fossil fuels, such as coal and oil. This rise in average temperature will have far-reaching effects on the earth's climate patterns and on all living things. Many of these changes have already begun.
Hot, dry weather led to a record-setting 2006 wildland fire season with close to 100,000 fires reported and nearly 10 million acres burned, 125 percent above the decade's average. » More on how global warming affects weather patterns. |
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In July 2006, severe heat waves in North America contributed to the deaths of at least 225 people. » More on how global warming affects our health. |
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In 2005, scientists reported that some polar bears are drowning because they have to swim longer distances to reach ice floes - they're now being considered for listing under the Endangered Species Act. » More on how global warming affects wildlife. |
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At the current rate of retreat, all of the glaciers in Glacier National Park will be gone by 2070. » More on how global warming affects glaciers and sea levels. |
Photo credits: storm: iStock; inhaler: iStock; polar bear: Corbis; flood: iStock.
last revised 12/10/2008
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