Correlation of Net CO2 emissions with climate properties shows that the growth in CO2 may be natural

Story submitted by WUWT reader Steve Brown

The narrative of the catastrophic anthropogenic global warming has been challenged at many levels but this presentation by Professor Murry Salby, Chair of Climate at Macquarie University rips up the very foundations of the story.

The talk (in the video below) was given at the Sydney Institute 2nd Aug 2011

He elegantly shows that there is a solid correlation between natural climate factors (global temperature and soil moisture content) and the net gain (or loss) in global atmospheric content when the latter is averaged over a two year period. The hanging question remains, if natural factors drive more than 90% of the growth in CO2 how significant is the contribution of human generated emissions. The answer is simple… not very.

The talk has been covered in the past on Judith Curry’s blog, and an abstract of the talk is here . But this is the first time I have encountered a video of the talk or been able to see the slides which he referenced.

Fascinating.

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