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That rocks:
Being able to set it at +4 ( historical evidence puts us WAAAAY above that, with our current CO2-levels, alone, even while ignoring methane ),
and change it to showing number-of-days-per-year-above-40C … and Texas, California, Brazil, ALL of Saharan Africa, some southern Africa, the Middle East, India, most of Australia, etc, turn dark red.
Looks like a bloodbath, given how we the species “deal with” such pressures with bullets fired against the lives of “other” populations…
Very interesting resource, that.
Too bad they stop it at +4, instead of accepting the historical evidence putting it higher than that.
Here’s the historical-facts paper which puts us above +5C right now, without including the methane 1.3ppm to 1.4ppm ( use an 82.5x multiplication-factor to convert methane to 20y CO2 equivalent )…
They’re using a powerlaw:
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Evolution of global temperature over the past two million years
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280ppm + ( 280 * 2^(1/9) ) == +1C
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280ppm + ( 280 * 2^(2/9) ) == +2C
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and so-on: a doubling of CO2 produces +9C.
with the current added-methane, you get between +8C & +9C for current-atmosphere’s composition, which makes stopping-at-+4C … idiotic.
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This result suggests that stabilization at today’s greenhouse gas levels may already commit Earth to an eventual total warming of 5 degrees Celsius (range 3 to 7 degrees Celsius, 95 per cent credible interval) over the next few millennia as ice sheets, vegetation and atmospheric dust continue to respond to global warming.
You forgot the “over the next few millennia” part.
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