Sentences with phrase «strong water vapour feedback»

Now there were two papers put out by a Swiss team (you should know who) on consideration of European warming where they argued that natural effects could be ruled out; the first paper argued for strong water vapour feedback causing the 1980 to 1998 temperature rise and the later paper, using exactly the same data, argued for a reduction in aerosols causing a recovery in temperatures over the same period.
Both of these papers suggested a strong water vapour feedback.

Not exact matches

Recent observational and modelling evidence thus provides strong additional support for the combined water vapour - lapse rate feedback being around the strength found in AOGCMs.
where it is clear that water vapour feedback is MUCH stronger and counteracts the «lapse rate» feedback.
However, the contributions of water vapour / lapse rate and surface albedo feedbacks to sensitivity spread are non-negligible, particularly since their impact is reinforced by the mean model cloud feedback being positive and quite strong.
The theory that water vapour will always provide strong earming feedbacks is unlikely.
This water vapour feedback may be strong enough to approximately double the increase in the greenhouse effect due to the added CO2 alone.
The study showed that while water vapour provides the strongest feedback of the greenhouse gases (GHGs), it is not the cause (forcing) of global climate change.
In AOGCMs, the water vapour feedback constitutes by far the strongest feedback, with a multi-model mean and standard deviation for the MMD at PCMDI of 1.80 ± 0.18 W m — 2 °C — 1, followed by the (negative) lapse rate feedback -LRB--- 0.84 ± 0.26 W m — 2 °C — 1) and the surface albedo feedback (0.26 ± 0.08 W m — 2 °C — 1).
As regards the role of clouds and water vapour, Schmidt claims that Lindzen is unique in his belief that they act as a negative feedback, adding that there are now strong observational data to the contrary.»
Chris there is every reason to doubt this «general picture of water feedback» particularly the still yet to proven and in my IMO wrong assumption by the IPCC that water vapour is a strong positive feedback.
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