This link has been bookmarked by 3 people . It was first bookmarked on 05 Oct 2007, by connin.
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24 Oct 09
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05 Oct 07
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cientists are concerned that the natural fluctuation has been overtaken by a rapid human-induced warming that has serious implications for the stability of the climate on which much life on the planet depends.
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The greenhouse effect refers to the role played by gases which effectively trap energy from the Sun in the Earth's atmosphere. Without them, the planet would be too cold to sustain life as we know it.
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nothing is done to reduce emissions, current climate models predict a global temperature increase of 1.4-5.8°C by 2100.
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Even if we cut greenhouse gas emissions dramatically now, scientists say the effects would continue because parts of the climate system, particularly large bodies of water and ice, can take hundreds of years to respond to changes in temperature.
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We don't know exactly what proportion of the observed warming is caused by human activities or what the knock-on effects of the warming will be.
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evertheless, there is a growing scientific consensus that, even on top of the natural variability of the climate, something out of the ordinary is happening and humans are to blame.
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