this post was submitted on 17 Apr 2025
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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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China deploys 277.57 GW of solar in 2024 - 2025 roadmap/projections (www.pv-magazine.com)
submitted 1 week ago by humanspiral@lemmy.ca to c/climate@slrpnk.net
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28% growth over 2023. Forecast for 2025 is 215-250GW, down, but original forecast from same agency/report for 2024 was only 220GW (achieved 26%+ higher than target). March 2025 report shows 42% increase in solar capacity (or production actually) over last year, at end of February. 930gw. 33gw in 2 months is behind forecast on linear basis, but this is slow period, traditionally . Production can go up higher than capacity if it was sunnier than last year.

Solar module output expanded 13.5% to 588 GW. Forecast for 2025 is up to 583gw. It exported 235gw of solar panels. up 13% in 2024. Europe was down for the year, but up in last quarter. https://www.infolink-group.com/energy-article/solar-topic-china-pv-module-exports-yoy-growth-all-regions-except-europe

500gw per year is enough to match double Germany's annual electricity production. Not that Germany isn't already a leader in renewables, but just that it is a significant permanent displacement of fossil fuel electricity, and with EVs, of Oil.

The important metric of energy transition is the global pace. Whether it's all done by one country doesn't actually matter.

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[–] avidamoeba@lemmy.ca 4 points 1 week ago

For context China's power generation capacity in 2023 was 2.92TW. 0.25TW is about 8% of that capacity which is quite a lot.