Missing carbon mystery: Case solved?
Henk op xp
HmjE at HOME.NL
Thu Aug 23 02:44:23 CEST 2007
REPLY TO: D66 at nic.surfnet.nl
http://www.nature.com/climate/2007/0708/full/climate.2007.35.html
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Nature Reports Climate Change
doi:10.1038/climate.2007.35
Missing carbon mystery: Case solved?
Jane Burgermeister
*Scientists claim to have located the 'missing carbon sink' in tropical
forests that are absorbing around one billion tonnes more carbon than
previously thought. Jane Burgermeister investigates.*
They looked for it here and they looked for it there, but the carbon had
vanished into thin air. So it seemed in the case of the 'missing carbon
sink', a billion tonnes of human-generated carbon assumed to be absorbed
by northern forests, but unaccounted for in field studies. Scientists
now say they have located the missing carbon in tropical forests that
are removing much higher quantities of carbon dioxide from the
atmosphere than realized.
Missing carbon mystery: Case solved?
Tropical forests could be absorbing as much as one billion tonnes more
carbon than previously realized.
Of the 8 billion tonnes of carbon that human activity produces each year
— 6.4 from fossil-fuel emissions, and 1.6 from deforestation, mainly in
the tropics^1
<http://www.nature.com/climate/2007/0708/full/climate.2007.35.html#B1> —
on average, 3.2 billion tonnes remain in the atmosphere, 2.2 billion
tonnes are stored in the oceans and 2.6 billion tonnes are sucked up by
land-based carbon sinks, mainly forests. Carbon-uptake models predict
that as much as 2.4 billion tonnes of this carbon ends up in northern
mid- to high-latitude forests. But scientists searching for it on the
ground — measuring trees and carbon exchanges between the vegetation and
the atmosphere — have only been able to account for about 0.7 billion
tonnes there^2
<http://www.nature.com/climate/2007/0708/full/climate.2007.35.html#B2> .
...
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Henk Elegeert
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