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Environment & Energy
In reply to the discussion: The E/E pocket reference guide [View all]OKIsItJustMe
(20,733 posts)51. So here’s the thing
Hansen et al. arent talking about stopping the increase at 350 ppm (or even 400 ppm.)
What theyre talking about is minimizing the overshoot, stopping it as little above 400 ppm as possible so that we can bring it back down to 350 ppm ASAP.
To do that (IMHO) will require some sort of active removal of CO[font size="1"]2[/font] from the atmosphere. Hanson et al. suggest, A reward system for improved agricultural and forestry practices that sequester carbon
but I dont think that will be sufficient.
Can we stop the increase before 450? Maybe. But only if we actually make a concerted effort (which, so far, we dont seem to be doing.)
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The last time we were above 420ppm CO2 we were 20 degrees warmer worldwide
IbogaProject
Mar 2024
#83
You conferred with the originator. You know better than me what the threads about
Kolesar
Jan 2012
#12
At this point, it appears to be a pocket reference for scientific measurements of climate change
OKIsItJustMe
Jan 2012
#24
Yeah? So what? Show me PROOF that global warming is real, not just a bunch of charts.
Kablooie
Feb 2012
#54
can you point me to a site where they have the data for CO2 concentration & annual Global mean temps
Bill USA
Mar 2013
#65
Japanese satellite Arctic ice extent figures, since the American satellite has problems
muriel_volestrangler
May 2016
#74
"I think the Democratic Party has forsaken old environmental protections". Seriously????
marble falls
Mar 2020
#79