this post was submitted on 15 Apr 2024
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Climate - truthful information about climate, related activism and politics.

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Discussion of climate, how it is changing, activism around that, the politics, and the energy systems change we need in order to stabilize things.

As a starting point, the burning of fossil fuels, and to a lesser extent deforestation and release of methane are responsible for the warming in recent decades: Graph of temperature as observed with significant warming, and simulated without added greenhouse gases and other anthropogentic changes, which shows no significant warming

How much each change to the atmosphere has warmed the world: IPCC AR6 Figure 2 - Thee bar charts: first chart: how much each gas has warmed the world.  About 1C of total warming.  Second chart:  about 1.5C of total warming from well-mixed greenhouse gases, offset by 0.4C of cooling from aerosols and negligible influence from changes to solar output, volcanoes, and internal variability.  Third chart: about 1.25C of warming from CO2, 0.5C from methane, and a bunch more in small quantities from other gases.  About 0.5C of cooling with large error bars from SO2.

Recommended actions to cut greenhouse gas emissions in the near future:

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[–] FlexibleToast@lemmy.world 1 points 7 months ago (1 children)

Yeah, like I said, a ridiculous amount of trees according to that calculator. That calculator said I'm in the top 5% and would take just over 200 trees a year. If we make the assumption that all of the top 5% also need 200 trees a year (it'smuch more likely that number sky rockets as the percentage gets lower), that's 70,000,000,000 trees a year. To put some scale to that it looks like 14m hectares were lost to deforestation in 2010 and from what I see the most generous number is about 900 trees per hectare. That's 12,600,000,000 trees. Stopping all deforestation won't even come close to covering 5% of the CO2. Again, trees never will be enough to make up for the CO2 being pumped out of the ground and into the air.

[–] Atelopus-zeteki@kbin.run 1 points 7 months ago (1 children)

Ok, so you don't like trees. I get it. I still think they are part of the larger solution. And, what do you like? How are we going to solve this? Cuz, we are going to solve it, dancing joyously all the way.

[–] FlexibleToast@lemmy.world 1 points 7 months ago

I didn't say I don't like trees, just they aren't the solution. They're often used as green washing and delay actually effective things like carbon cap and trade. I don't know what the solution will be. If it were simple enough for me to solve it, it wouldn't be a problem we're facing.