CO2 Fraction in the atmosphere is declining.. yet we have not decreased our output... Mother Nature is fixing the problem in its own time and we will never have a climate that will "runaway". The earth is responding as it has to every other condition it has seen in its existence. Man is a fool if he thinks he is controlling anything.
Randall J. Donohue et. al. – 31 May, 2013
Abstract
CO2 fertilisation has increased maximum foliage cover across the globe’s warm, arid environments
[1]
Satellite observations reveal a greening of the globe over recent decades. …….Using gas exchange theory, we predict that the 14% increase in atmospheric CO2 (1982–2010) led to a
5 to 10% increase in green foliage cover in warm, arid environments. Satellite observations, analysed to remove the effect of variations in rainfall, show that
cover across these environments has increased by 11%.…..
Impact of CO2 fertilization on maximum foliage cover across the globe s warm arid environments - Donohue - 2013 - Geophysical Research Letters - Wiley Online Library
Abstract – May 2013
A Global Assessment of Long-Term Greening and Browning Trends in Pasture Lands Using the GIMMS LAI3g Dataset
Our results suggest that degradation of pasture lands is not a globally widespread phenomenon and, consistent with much of the terrestrial biosphere, there have been
widespread increases in pasture productivity over the last 30 years.
Remote Sensing Free Full-Text A Global Assessment of Long-Term Greening and Browning Trends in Pasture Lands Using the GIMMS LAI3g Dataset
Abstract – 10 APR 2013
Analysis of trends in fused AVHRR and MODIS NDVI data for 1982–2006: Indication for a CO2 fertilization effect in global vegetation
…..The effect of climate variations and CO2 fertilization on the land CO2 sink, as manifested in the RVI, is explored with the Carnegie Ames Stanford Assimilation (CASA) model. Climate
(temperature and precipitation) and CO2 fertilization each explain approximately 40% of the observed global trend in NDVI for 1982–2006……
Analysis of trends in fused AVHRR and MODIS NDVI data for 1982 2006 Indication for a CO2 fertilization effect in global vegetation - Los - 2013 - Global Biogeochemical Cycles - Wiley Online Library
Abstract – May 2013
…….However, this study hypothesizes that
the increase in CO2 might be responsible for the increase in greening and rainfall observed. This can be explained by an increased aerial fertilization effect of CO2 that triggers plant productivity and water management efficiency through reduced transpiration. Also, the increase greening can be attributed to rural–urban migration which reduces the pressure of the population on the land…….
doi: 10.1007/s10113-013-0473-z
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Abstract – 2013
“…..,.,.
the increase in gross primary productivity (GPP) in response to a doubling of CO2 from preindustrial values is very likely (90% confidence) to exceed 20%, with a most
likely value of 40–60%…..”
doi:doi:10.5194/bg-10-339-2013