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Politics : Formerly About Advanced Micro Devices
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To: Wharf Rat who wrote (1416360)8/25/2023 1:41:01 PM
From: Tenchusatsu1 Recommendation

Recommended By
Brumar89

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Wharfie,
In 1896, Arrhenius said doubling CO2 to 560 would cause temps to go up 1.5-5.5 degrees C, IIRC. IPCC pretty much agrees with that range. CO2 is around 420, and temps have been hitting 1.5 degrees, so it's not gonna be on the low end. I'm thinking it will 3-3.75 degrees warmer.
We're not at 1.5 degrees Celcius yet, not even if you go all the way back to the Industrial revolution.

Yet CO2 is already at 421 PPM, up from 280 PPM. That's a 50% increase for maybe a 1.2 degree Celsius increase in temperature over the past 150 years.

If or when we hit 500 PPM, how much will global temperatures increase? Maybe another 0.6 degrees.

And maybe we'll see even more variance in extreme weather events.

That's it. The world won't end, global civilization won't end, mass extinctions won't happen.

Tenchusatsu
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