Publication: The Contemporary and Historical Budget of Atmospheric (CO_2)
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Date
2012
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NRC Research Press
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Huang, Junling, and Michael Brendon McElroy. 2012. The contemporary and historical budget of atmospheric \(CO_2\). Canadian Journal of Physics 90(8): 707-716.
Abstract
Observations of (CO_2) and (O_2) are interpreted to develop an understanding of the changes in the abundance of atmospheric (CO_2) that have arisen over the period 1995–2007. Fossil fuels accounted for an addition of 89.3 Gt of carbon to the atmosphere over this time period, 29% of which was transferred to the ocean, 15% to the global biosphere, with the balance (57%) retained by the atmosphere. Analysis of historical data for (CO_2) derived from studies of gases trapped in ice at Law Dome in Antarctica indicate that the biosphere represented a net source of atmospheric (CO_2) prior to 1940, switching subsequently to a net sink.
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