TRUTH IN OBSERVATION

Alex Stuart, chairman of the Australian Environment Foundation writing at Quadrant Online highlights observations from some recent studies.

"In its 2007 Assessment Report, the Intergovernmental Panel on Climate Change handled this question of ‘climate sensitivity’ with computer models. IPCC assumed that a theoretical temperature rise from CO2 alone would be theoretically amplified by water vapour, in a ‘positive feedback’, by a factor of between 2.0 and 4.5. It’s logical: if it gets warmer, there’ll be more surface evaporation, more water vapour in the air - and a warmer surface. But has it been proven that water vapour causes further warming? In fact, it hasn’t."

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U.K. MET OFFICE WINTER FORECAST

The U.K. Met is in trouble again.  With this much trouble predicting national weather a month in advance, pity those trying to predict global climate 100 years in advance.

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CLIMATE MODELS DO NOT PROVIDE THE DATA

Joanne Nova is interviewed on ABC radio about the lack of empirical data supporting the theory of man-made global warming.

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THE FOLLY OF TILTING AT WINDMILLS

The Australian editorialises on the fallacy of wind power.

"As the carbon reduction debate progresses, it is clear that the real argument is not primarily about climate science, but economics."

LINK to editorial       LINK to article

EMISSIONS REDUCTIONS ARE NOT BLOWING IN THE WIND

Barry Brook is director of climate science at the University of Adelaide's Environment Institute; Martin Nicholson is the author of Energy in a Changing Climate; Tom Biegler is fellow of the Australian Academy of Technological Sciences and Engineering and they write in The Australian on the future of reducing emissions at some sort of sensible cost.

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IS TREE RING DATA USEFUL?

Dr's Jennifer Marohasy and John Abbot from Central Queensland University have conducted a review of the use of tree ring data for establishing temperature proxies in a paper at Environmental Law and Management. 

‘Although ancient oaks could give an indication of oneoff dramatic climatic events, such as droughts, they were not useful as a temperature proxy because they were highly sensitive to water availability as well as past temperatures. In my view it would be dangerous to try and make interpretations about the temperature from this data. It’s been dressed up as though we are suppressing climate data, but we have never produced climate records from our tree rings.’

LINK to paper summary