Comments on: Heavy and light H2O https://www.gardenvisit.com/blog/heavy-and-light-h2o/ Gardenvisit.com Sun, 30 Aug 2009 01:39:44 +0000 hourly 1 https://wordpress.org/?v=6.5.8 By: Christine https://www.gardenvisit.com/blog/heavy-and-light-h2o/#comment-1029 Sun, 30 Aug 2009 01:39:44 +0000 http://www.gardenvisit.com/blog/?p=2385#comment-1029 ps. The temperatures listed are cloud temperatures at rather than ground temperatures. At a cloud height of 1.25km the temperature is 8 degrees C (46.4degF) and at 11.25 km the temperature is -57 degrees C(-70.6degF).

According to Wagner et al in their paper ‘Dependence of cloud fraction and cloud top height on surface temperature derived from spectrally resolved UV/vis satelite observations(2007)'[abstract]

“Cloud climate feedback constitutes the most important uncertainty in climate modelling,
and currently even its sign is still unknown. In the recently published report of the intergovernmental panel on climate change (IPCC), from 20 climate models 6 showed a
positive and 14 a negative cloud radiative feedback in a doubled CO2 scenario.”

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