| | Learn more about Global warming in the online encyclopedia. (Site not responding. Last check: 2007-10-21) |
 | | Evidence of global warming is uneven with certain places, especially the north shore of Alaska, showing dramatic rises temperature far above the average for the globe as a whole [1]. |
 | | Due to potential effects on human health and economy due to the impact on the environment, global warming is a cause of great concern. |
 | | Global warming causes the sea level to rise mainly because sea water expands as it warms, but some scientists are concerned that in the future, the polar ice caps and glaciers may melt. |
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