
...for many global warming/climate change sceptics the alarm bells rang loud and clear when politicians and green/left political "activists" announced that the jury had returned, and that the science of climatastrophe was settled. Over these last few years the AGW debate has largely stayed out of the MSM, it has instead been fought through blogs, and day by day, poll by poll the news is that the general public are getting the message. Re recent US polling see
this.
Now from the University of Bristol, UK, more bad news for the warmists and further reinforcement that computer based climate change models are worthless...
...New data (9.11.09) shows that the balance between the airborne and the absorbed fraction of carbon dioxide has stayed approximately constant since 1850, despite emissions of carbon dioxide having risen from about 2 billion tons a year in 1850 to 35 billion tons a year now.This suggests that terrestrial ecosystems and the oceans have a much greater capacity to absorb CO2 than had been previously expected.
The results run contrary to a significant body of recent research which expects that the capacity of terrestrial ecosystems and the oceans to absorb CO2 should start to diminish as CO2 emissions increase, letting greenhouse gas levels skyrocket. Dr Wolfgang Knorr at the University of Bristol found that in fact the trend in the airborne fraction since 1850 has only been 0.7 ± 1.4% per decade, which is essentially zero...
...This work is extremely important for climate change policy, because emission targets to be negotiated at the United Nations Climate Change Conference in Copenhagen early next month have been based on projections that have a carbon free sink of already factored in. Some researchers have cautioned against this approach, pointing at evidence that suggests the sink has already started to decrease...MORE HERE...