by Judith Curry
The Inflation Reduction Act that has passed in the US Senate contains a healthy dose of funding for energy and climate initiatives. There is much discussion as to why this bill looks like it will pass, when previous climate bills (carbon tax, carbon cap and trade) failed.
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The Sun-Climate Effect: The Winter Gatekeeper Hypothesis (II). Solar activity unexplained/ignored effects on climate
by Javier Vinós & Andy May
“The complicated pattern of sun-weather relationships undoubtedly needs much further clarification, but progress in this field will be hindered if the view prevails that such relationships should not be taken seriously simply because the mechanisms involved in explaining them are not yet identified.” Joe W. King (1975)
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by Javier Vinós and Andy May
“Probably no subfield of meteorology has had as much effort devoted to it as the effects of solar variability on weather and climate. And none has had as little to show for the research labor.” Helmut E. Landsberg (1982)
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by Judith Curry
An exciting new project for my company, Climate Forecast Applications Network (CFAN) to support smallholder farmers in Pakistan and India.
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by Ross McKitrick
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by Dan Hughes
A brief continuation of previous discussions about calculation of viscous heat dissipation in the flow of liquids having linear stress/rate-of-strain constitutive description.
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by Dan Hughes
I recently ran across the paper by Isenko et al. [2005] listed below. The second paragraph of the introduction states:
“According to the conservation of energy, the loss of potential energy for a volume of water is sufficient to warm it by 0.2 C for each 100 m of lowering.”
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by Judith Curry
I have a new article published in the latest issue of International Affairs Forum.
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by Dan Hughes
The contribution of viscous dissipation conversion of kinetic energy into thermal energy has been significantly over-estimated in three recent publications. The kinetic energy content of the macro-scale mean flow is assigned to be the heat dissipation into thermal energy. The estimate leads to temperature increases that make significant contributions to melting ice on Greenland.
A recent news release announced the findings of the research, and a video of a melt-lake draining into the glacier ice is in the news release and also at YouTube here.
A different estimate, in which the viscous dissipation is determined at the micro-scale of the flow, is calculated in these notes. This estimate, and the associated temperature increases in the flow, are significantly less than that based on the macro-scale. A PDF file with my analysis is here [BSLdissip02]
Comments, especially corrections for incorrectos, will be appreciated.
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by Robert Ellison
I don’t raise the alarm at all, but there are tipping points in the Earth system. Megafloods and megadroughts. Abrupt warming or cooling of many degrees C in years or decades. Glacials and interglacials. Solar energy driving patterns of planetary turbulence and an ice, cloud and biology response. These have always been with us. Our limited geophysical instrumental series reveal a variability that can’t be distinguished from anthropogenic warming effects (Koutsoyiannis 2020 ). So it’s happening but perhaps not quite the end of the world yet.
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by Judith Curry
Russia’s invasion of Ukraine is inextricably linked to the global energy crisis, which is inextricably linked to the so-called climate ‘crisis’.
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by Judith Curry
“The current thinking and approaches guiding this conceptualization and description have been shown to lack scientific rigour, the consequence being that climate change risk and uncertainties are poorly presented. The climate change field needs to strengthen its risk science basis, to improve the current situation.” – Norwegian risk scientist Terje Aven
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by Javier
My perspectives on managing personal Covid risk, based upon my knowledge of microbiology, genetics, immunology, cancer, and neurobiology.
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by Judith Curry
“The first rule of climate chess is this. The board is bigger than we think, and includes more than fossil fuels.” – Jon Foley
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by Judith Curry
A year ago, who would have thought that 2021 would be crazier than 2020?
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