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Global Warming
Part 1 of Paper
....able constituents of the Earth's lower atmosphere
have on surface temperatures. It has been known since 1896 that Earth has been
warmed by a blanket of gasses (This is called the “greenhouse effect.”). The
gases--water vapor (H2O), carbon dioxide (CO2), and methane (CH4)--keep ground
temperatures at a global avera.... Part 2 of Paper
....onmental disturbances. An
example of a runaway greenhouse effect is Earth's near-twin planetary neighbor
Venus. Because of Venus's thick CO2 atmosphere, the planet's cloud-covered
surface is hot enough to melt lead.
Water vapor is an important "greenhouse" gas. It is a major reason why
humid regions experience less cooling at night than do dry regions,. However,
variations in the atmosphere's CO2 content are what have played a major role in
past climatic changes. In recent decades there .... |
| Number of words: 711 - Approximate pages: 3 |
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