How does global warming change the earth? ice melts blah blah blah.......................................
A careful examination of a large number of species in numerous parts of the planet projects that a stunning portion of them will be %26quot;committed to extinction%26quot; in just 50 years, with only modest global warming (Thomas, 2004). %26quot;Committed to extinction%26quot; means that, in the language of poet Pedro Pietri (1968?), %26quot;their names [are] listed in the telephone directory of destruction,%26quot; that is, the book of death. It does not mean that 50 years from now all these %26quot;committed%26quot; species will be gone, but rather that they will no longer have a habitat in which they can survive. The demise of the last members of such species may hang on for some decades, but their ultimate doom is assured.

The findings are the result of a comprehensive examination of more than a thousand terrestrial species -- plants, insects, mammals, birds, frogs and reptiles -- in regions representing about 20% of the Earth%26#039;s surface. The regions studied are located in all continents except Asia, and represent a wide variety of environments: boreal (northern), temperate, and tropical forests, tundra, grasslands, savannah, deserts. The amount of warming that was projected in the study was shockingly small. Three projections were used: 0.8 to 1.7 °C (1.4 to 3.0°F) in the minimal warming case, 1.8 to 2.0°C (3.2 to 3.6°F) with mid-range climate change, over 2.0°C (3.6°F) at maximum (Thomas, 2004; Pounds and Puschendorf, 2004).

But with only this rather minimal amount of warming, and even with an assumed ability to disperse to more favorable environments, 11, 19, and 33 percent of total species (in minimal, mid-range, and maximal cases, respectively) will disappear. Mortality among those species with little or no ability to disperse will be considerably higher (34, 45, and 58 % in the respective no dispersal cases). Moreover, the %26quot;minimal%26quot; case (0.8 to 1.7 °C/1.4 to 3.0°F) represents the minimum expected warming by 2050: as the study%26#039;s authors point out, this means that this level of extinction is inevitable (Thomas, 2004). In 50 years, more than 10% of terrestrial species -- at minimum -- will be on a one-way path to extinction; in 100 years, almost all those species will be gone.

%26quot;Contrary to previous projections,%26quot; the authors note, %26quot;[climate warming] (which they attribute to human activity) is likely to be the greatest threat in many if not most regions.%26quot; The study did not examine the %26quot;historically unprecedented%26quot; carbon dioxide levels with which organisms will have to contend, or interactions between climate change and other ecological threats, which the authors indicate are likely to be even more severe than climate change in isolation (Thomas, 2004). The message of this study is simple: climate change kills -- and kills extraordinary numbers of living things -- even when it is minor.
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We do know the actual outcome of climate change, since it has happened before:

Permian–Triassic extinction event
http://en.wikipedia.org/wiki/Permian-Tri...

It was the Earth%26#039;s most severe extinction event, with up to 96 percent of all marine species and 70 percent of terrestrial vertebrate species becoming extinct. Because approximately 25 percent of species survived the event, the recovery of life on earth took significantly longer than after other extinction events. This event has been described as the %26quot;mother of all mass extinctions%26quot;.

Climate Model Links Warmer Temperatures to Permian Extinction
http://www.physorg.com/news6003.html 0% 0 Votes 8% 1 Vote

it will increase the percentage of water level on the earth by melting the ICE in the poles 0% 0 Votes

the co2 and other harmful gases seem to form around the earth. now, the sun%26#039;s UV rays can%26#039;t bounce off to space since the gases blocks its way. the rays warm the earth, and the polar ice are melting. the sea level will rise, and by about maybe 60 years(if still continuing to make co2 and gases), the coastal cities will begin to sink underwater. if we still don%26#039;t stop this, the earth will be completely submerged in water. the maldives island is already beginning to sink. al gore%26#039;s %26quot;the inconvienient truth%26quot; 0% 0 Votes

It changes the earth very slowly, measured in decades. There is however clearly a direct correlation between temperature and CO2 levels in the atmosphere. Human activity has directly contributed CO2 to the environment. Common sense tells you that since we are releasing millions of years of CO2 by combustion of fossil fuels very quickly and in massive amounts, we do in fact have an impact that is not part of a natural cycle. There is much more research behind all this and the National Scientific community supports the findings, along with the vast majority of national scientific communities around the world. When people say things like %26quot;It doesn%26#039;t exist%26quot; (Global Warming that is), they either have not studied the facts or listen very closely to a small minority view without checking the facts themselves. 8% 1 Vote

The bad stuff (CO2 lets say) gets into the air, blocks out the sun, and the rest of the light bounces off of the CO2 and down to the ground and heats everything up. That%26#039;s just keeping it simple. 8% 1 Vote