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Forests could flip from sink to source of CO2: study http://apocadocs.com/s.pl?1239987730
Forests that today soak up a quarter of carbon pollution spewed into the atmosphere could soon become a net source of CO2 if Earth's surface warms by another two degrees Celsius (3.6 degrees Fahrenheit), cautions a report to be presented Friday at the UN.
Plants both absorb and exhale carbon dioxide, but healthy forests -- especially those in the tropics -- take up far more of the greenhouse gas than they give off.
When they are damaged, get sick or die, that stored carbon is released....Authored by 35 of the world's top forestry scientists, the study provides the first global assessment of the ability of forests to adapt to climate change.
Manmade warming to date -- about 0.7 C since the mid-19th century -- has already slowed regeneration of tropical forests, and made them more vulnerable to fire, disease and insect infestations. Increasingly violent and frequent storms have added to the destruction.
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[Read more stories about:
anthropogenic change, global warming, forests, carbon sinks, holyshit]
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New!:
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Your Quips:
Rhubarbara says: "and boy are we"
Agriman says: "Not just forests -- cornfields too."
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'Doc Jim says:
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From sink.... to sunk.
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