The source says it all: A conservative think tank dedicated to the principle of policy debate.
Privately funded think tank. Not a scientific institution. The report has not been peer reviewed. In other words it is not worth the paper its written on. Its just a shill for their ideological stance. Once it gets into a scientific peer reviewed journal, like Nature, Science or the Journal of the American Geophysical Union, then it may have some worth, but until then its just ideological bs. > Planetary temperature controls CO2 levels not humans > > Excerpt: > > Judging by the speech Murry Salby gave at the Sydney Institute, > theres a > blockbuster paper coming soon. > Listen to the speech: Global Emission of Carbon Dioxide: The > Contribution > from Natural Sources<http://www.thesydneyinstitute.com. au/podcast/glob> al-emission-of-carbon-dioxide-the-contribution-from-natural-sources/> > > Professor Murry Salby is Chair of Climate Science at Macquarie > University. > Hes been a visiting professorships at Paris, Stockholm, Jerusalem, > and > Kyoto, and hes spent time at the Bureau of Meterology in Australia. > > Over the last two years he has been looking at C12 and C13 ratios and > CO2 > levels around the world, and has come to the conclusion that man-made > emissions have only a small effect on global CO2 levels. Its not just > that > man-made emissions dont control the climate, they dont even control > global > CO2 levels. > > The higher levels of CO2 in recent decades appear to be mostly due to > natural sources. He presented this research at the IUGG conference in > Melbourne recently, causing great discussion and shocking a few people. > Word > reached the Sydney Institute, which rushed to arrange for him to speak, > > given the importance of this work in the current Australian political > climate. > > The ratio of C13 to C12 (two isotopes of carbon) in our atmosphere has > been > declining, which is usually viewed as a signature of man-made CO2 > emissions. > C12 makes up 99% of carbon in the atmosphere (nearly all atmospheric > carbon > is in the form of CO2). C13 is much rarer about 1%. Plants dont > like the > rarer C13 type as much; photosynthesis prefers C12 to C13 when > absorbing CO2 > from the air. > > Prof Salby points out that while fossil fuels are richer in C12 than > the > atmosphere, so too is plant life on Earth, and there isnt a lot of > difference in the ratios of C13 to C12 in plants versus fossil fuels. > So if > the C13 to C12 ratio is falling (as more C12 rich carbon is put into > the air > by burning fossil fuels) then we cant know if its due to man-made > CO2 or > natural CO2 from plants. > > Essentially we can measure man-made emissions reasonably well, but we > cant > measure the natural emissions and sequestrations of CO2 at all > precisely > the error bars are huge. Humans emits 5Gt or so per annum, but the > oceans > emit about 90Gt and the land-plants about 60Gt, for a total of maybe > 150Gt. > Many scientists have assumed that the net flows of carbon to and from > natural sinks and sources of CO2 cancel each other out, but there is > no real > data to confirm this and its just a convenient assumption. The > problem is > that even small fractional changes in natural emissions or > sequestrations > swamp the human emissions. > > Read more here: > http://joannenova.com. au/2011> /08/blockbuster-planetary-temperature-controls-co2-levels-not-humans/ > > > Presented for your reading enjoyment/information and not as a > definitive > piece of evidence debunking man made global warming. > > J > > - > > When we get piled upon one another in large cities, as in Europe, we > shall > become as corrupt as Europe. - Thomas Jefferson > > Politicians are people who, when they see light at the end of the > tunnel, go > out and buy some more tunnel. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Order the Adobe Coldfusion Anthology now! http://www.amazon.com/Adobe-Coldfusion-Anthology/dp/1430272155/?tag=houseoffusion Archive: http://www.houseoffusion.com/groups/cf-community/message.cfm/messageid:341311 Subscription: http://www.houseoffusion.com/groups/cf-community/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/groups/cf-community/unsubscribe.cfm
