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We just hit 1.5 C above per-industrial levels for the first time. (www.abc.net.au)

submitted 1 year ago by ruford1976@lemmy.world to c/world@lemmy.world

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[-] alvvayson@lemmy.world 150 points 1 year ago* (last edited 1 year ago)

The IPCC calculations were always criticized for being overly optimistic. Anyone following this debate knew that we would hit 1.5 C sooner rather than later.

We are definitely going to hit 3 degrees in our lifetime, once the melting tundras release their methane store.

[-] kale@lemmy.zip 58 points 1 year ago

Melting tundra releases methane, accelerating the increase in temperature. Rising temperature reduces polar ice, making oceans absorb more heat, accelerating heating. Climate pattern changes cause more frequent and larger wildfires, accelerating heating.

There are probably processes that work to reduce heating as it increases that I'm not aware of, but there are a lot of positive feedback processes which is concerning.

I believe the IPCC 1.5C was criticized because it included effects of a carbon sequestering process that hasn't been invented yet. That's pretty optimistic.

[-] Graphine@lemmy.world 2 points 1 year ago* (last edited 1 year ago)

Which is why I support the idea of setting up bases on the Moon and/or Mars.

Everything is accelerating, and nobody gives a fuck to do anything before it's too late. I hate the argument that NASA doesn't push its budget to prevent CC or even Space X. Because stopping CC is a global effort on a colossal scale. It's not going to work until it's too late. Might as well get off this rock.

Edit: Very fucking optimistic of you all

[-] bravosimona@lemmy.world 3 points 1 year ago

The Earth would be more habitable than the Moon and Mars even in worse than worse case scenario climate change conditions. The atmosphere will still protect us from cosmic radiation, and we won’t need pressurized suits and habitats. A lot of people will suffer and die, but humanity will not go extinct because of climate change, our society will though.

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this post was submitted on 11 Sep 2023

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