You may recall that Phil Jones, former director of Britain's Climatic Research Unit, said there has been NO statistically significant global warming from 1995 to the present. If true, why?
Well it would appear that a 10% decrease in water vapor in the stratosphere may be the cause. Water vapor is a naturally occurring greenhouse gas, and has been thought to remain at relatively stable concentrations. While the linked study cites extensive measurements, the authors confess to not knowing why stratospheric water vapor content changes.
Since water vapor and cloud formation are linked, you might wish to check out this short article about improved cloud modeling in
Nature Climate Reports.
Photo: Clouds over Madagascar by Bill Fintel
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