https://www.youtube.com/watch?v=OcdZvdSh9LQ
Net Heat has more than tripled!!
This French scientist explanation of Joseph Fourier on global warming is the best vid I can find
It was in the 1820s that a French scientist, Joseph Fourier, first realized that the Earth’s atmosphere retains heat radiation. He had asked himself a deceptively simple question, of a sort that physics theory was just then beginning to learn how to attack: what determines the average temperature of a planet like the Earth? When light from the Sun strikes the Earth’s surface and warms it up, why doesn’t the planet keep heating up until it is as hot as the Sun itself? Fourier’s answer was that the heated surface emits invisible infrared radiation, which carries the heat energy away into space. He lacked the theoretical tools to calculate just how the balance places the Earth at its present temperature. But with a leap of physical intuition, he realized that the planet would be significantly colder if it lacked an atmosphere.
http://mpe.dimacs.rutgers.edu/2013/01/19/the-discovery-of-global-warming/
part 1 - what is the Greenhouse Effect - he is building on Fourier's work
David Archer co-edited a book with Raymond Pierrehumbert - the Global Warming Book that lists all the top science papers on global warming - starting with Joseph Fourier 200 years ago!
the last four interglacials lasted over ~20000 years with the warmest portion
https://www.usgs.gov/faqs/how-long-can-we-expect-present-interglacial-period-last
This is a repeat of David Archer's lecture by another climate scientist - in French
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