Global Warming

The greenhouse effect, in environmental science, is a popular term for
the effect that certain variable 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 average of about 15 degrees C (60 degrees F). Without
them the average would be below the freezing point of water. The gases have
this effect because as incoming solar radiation strikes the surface, the surface
gives off infrared radiation, or heat, that the gases trap and keep near ...

Want to read the rest of this paper?
Join Essayworld today to view this entire essay
and over 50,000 other term papers

of the polar icecaps and hence a major
rise in sea level, along with other severe environmental 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 has been a global increase in
atmospheric CO2, largely as a result of the burning of fossil fuels. If the
many other determinants of the Earth's present global climate remain more or
less constant, the CO2 increase should raise the average temperature at the
Earth's surface. As the atmosphere warmed, the amount of H2O would probably
also increase, because warm air can contain more H2O than can cooler ...

Get instant access to over 50,000 essays.
Write better papers. Get better grades.

Already a member? Login


Global Warming. (2007, June 24). Retrieved July 10, 2020, from
"Global Warming.", 24 Jun. 2007. Web. 10 Jul. 2020. <>
"Global Warming." June 24, 2007. Accessed July 10, 2020.
"Global Warming." June 24, 2007. Accessed July 10, 2020.
Join today and get instant access to this and 50,000+ other essays

Added: 6/24/2007 07:14:03 AM
Category: Science & Nature
Type: Premium Paper
Words: 711
Pages: 3

Save | Report


Save and find your favorite essays easier

» Global Warming ------
» Global Warming 2
» Global Warming
» Global Warming
» Essay On Global Warming
» Global Warming 3
» Global Warming
» Global Warming Extended Definit...
» Global Warming--is It Getting W...
» Global Warming
» Global Warming And The Greenhou...
Copyright | Cancel | Contact Us

Copyright © 2020 Essayworld. All rights reserved