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Notices by Prof. Stefan Rahmstorf (rahmstorf@fediscience.org)

  1. Prof. Stefan Rahmstorf (rahmstorf@fediscience.org)'s status on Saturday, 28-Jan-2023 09:08:01 CET Prof. Stefan Rahmstorf Prof. Stefan Rahmstorf
    in reply to

    This increase in extreme rainfall and damaging flooding has been predicted by climate models for over 30 years now. And the data show it is happening as predicted.

    In conversation Saturday, 28-Jan-2023 09:08:01 CET from fediscience.org permalink
  2. Prof. Stefan Rahmstorf (rahmstorf@fediscience.org)'s status on Saturday, 28-Jan-2023 09:08:01 CET Prof. Stefan Rahmstorf Prof. Stefan Rahmstorf

    The physics of this is simple: the amount of water vapor that a volume of air can hold and then rain out increases exponentially with temperature by 7% per °C warming. That's elementary 19th Century, first semester physics, the Clausius–Clapeyron relation. https://en.wikipedia.org/wiki/Clausius%E2%80%93Clapeyron_relation

    In conversation Saturday, 28-Jan-2023 09:08:01 CET from fediscience.org permalink

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    1. Clausius–Clapeyron relation
      The Clausius–Clapeyron relation, named after Rudolf Clausius and Benoît Paul Émile Clapeyron, specifies the temperature dependence of pressure, most importantly vapor pressure, at a discontinuous phase transition between two phases of matter of a single constituent. Its relevance to meteorology and climatology is the increase of the water-holding capacity of the atmosphere by about 7% for every 1 °C (1.8 °F) rise in temperature. Definition On a pressure–temperature (P–T) diagram, the line separating the two phases is known as the coexistence curve. The Clapeyron relation gives the slope of the tangents to this curve. Mathematically, d ...
  3. Prof. Stefan Rahmstorf (rahmstorf@fediscience.org)'s status on Friday, 23-Dec-2022 16:24:09 CET Prof. Stefan Rahmstorf Prof. Stefan Rahmstorf

    Nuclear #fusion will not only come too late to help solve the #climatecrisis. Even in the long run it will not be the unlimited energy source that some are dreaming of. The reason is basic physics, and anyone can do the back-of-envelope calculation. 🧵1/

    In conversation Friday, 23-Dec-2022 16:24:09 CET from fediscience.org permalink

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    Prof. Stefan Rahmstorf

    Prof. Stefan Rahmstorf

    Head of Earth System Analysis at the Potsdam Institute for Climate Impact Research; professor of Physics of the Oceans at Potsdam University; dad. Opinions my own!

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