I’m really quite surprised to find this paper in Nature, especially when it makes claims so counter to the consensus that model projections are essentially a map of the future climate.
The Hockey Shtick writes: Settled Science: New paper ‘challenges consensus about what regulates atmospheric CO2 from year to year’.
A new paper published in Nature “challenges the current consensus about what regulates atmospheric CO2 from year to year” and finds “semi-arid ecosystems in the Southern Hemisphere may be largely responsible for changes in global concentrations of atmospheric CO2.”
The authors find links between the land CO2 sink in these semi-arid ecosystems “are currently missing from many major climate models.” In addition, they find that land sinks for CO2 are keeping up with the increase in CO2 emissions, thus modeled projections of exponential increases of CO2 in the future are likely exaggerated.
Climate science: A sink down under
- Nature (2014) doi:10.1038/nature13341
- Published online21 May 2014
The finding that semi-arid ecosystems in the Southern Hemisphere may be largely responsible for changes in global concentrations of atmospheric carbon dioxide has repercussions for future levels of this greenhouse gas.
more here: http://hockeyschtick.blogspot.com/