TITLE

GLOBAL WARMING

PUB. DATE
January 2003
SOURCE
World Almanac for Kids;2003, p72
SOURCE TYPE
Almanac
DOC. TYPE
Reference Entry
ABSTRACT
Many scientists believe that gases in the air are causing Earth's climate to gradually become warmer. This is called global warming. The hottest year on record was 1998. The second hottest was 2001. The third hottest was 1997, and 1999 was the sixth hottest. If the climate becomes too warm, lots of ice near the North and South Poles could melt. More water would go into the oceans, and many areas along the coasts could be flooded. In Earth's atmosphere there are tiny amounts of gases called greenhouse gases. These gases let the rays of the sun pass through to the planet, but they hold in the heat that comes up from the sun-warmed Earth. As cities have increased in size and population, factories and businesses have also grown. As industries in the world have grown, more greenhouse gases have been added to the atmosphere. These increase the thickness of the greenhouse "glass," causing more heat to be trapped than in the past. This is called the greenhouse effect.
ACCESSION #
8590711

 

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