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Tag Archives: Feedbacks
H2O decreasing while CO2 rises !
Dire predictions of global warming all rely on positive feedback from water vapor. The argument goes that as surface temperatures rise so more water will evaporate from the oceans thereby amplifying temperatures because H2O itself is a strong GHG. Climate models … Continue reading
Posted in AGW, Climate Change, climate science, Science
Tagged Climate Sensitivity, CO2, Feedbacks, H2O
33 Comments
Trends in Atmospheric Water Vapour
The basis of IPCC predictions is that any moderate warming caused by increased CO2 levels is enhanced by more evaporation from the oceans. Water vapour is itself a strong greenhouse gas and this increase results in a large “positive feedback” … Continue reading
Posted in AGW, Climate Change, climate science, Oceans, Science
Tagged CO2, Feedbacks, H2O
18 Comments
Thermal inertia and climate feedbacks
Abstract: This post studies the time lag in global warming following incremental increases in CO2 forcing. It uses a GCM [1] to parameterize these ”inertia” effects which are mainly due to slow ocean warming and ice melting. The Mauna Loa … Continue reading
Getting to grips with GISS GCM
I have downloaded the GISS GCM Model II [1] and have begun to investigate it. Since all the predictions of future AGW depend on the results from such models I decided I really needed to understand just how they work. … Continue reading
Posted in AGW, Climate Change, climate science, GCM, Science
Tagged Climate Sensitivity, CO2, Feedbacks
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Evidence for Negative Water Feedback
Abstract: Positive linear climate feedback for combined water effects is shown to be incompatible with the Faint Sun Paradox. In particular, feedback values of ~2.0 W/m2K-1 favored by current GCM models lead to non physical results at solar radiation levels … Continue reading
Posted in AGW, Climate Change, climate science, Gaia, Science
Tagged CO2, Feedbacks, H2O
40 Comments
Water – direct evidence of negative feedback
An estimate of the climate feedback of water is described below using global temperature measurements[1]. The calculation is based on the assumption that dry arid deserts have essentially zero feedback from water, whereas regions dominated by large oceans have maximal … Continue reading