Citaat:
Air trapped in Vostok ice shows not only that CO2 levels fall and rise as the glacial period starts and ends, but that the size of the temperature swings can be explained only if the release of greenhouse gas amplifies warming caused by tiny changes in the Earth's orbit. Scientists find a strong natural feedback between rising temperatures and the release of CO2 from the land and sea. But because greenhouse gas concentrations are measured directly from air bubbles trapped in the ice, whereas temperature is inferred from other clues, attempts to align the records can err by many centuries. The chicken-and-egg problem of which came first in Antarctica remains unresolved. (See Barnola et al. Nature 1987, Jouzel et al. Nature 1987, Genthon et al. Nature 1987)
http://www.nature.com/climate/timeli...res/index.html
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Zonder O2, geen dierlijk leven. Zonder CO2, geen leven.
"The reason people use a crucifix against vampires is that vampires are allergic to bullshit." - Richard Pryor
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