this post was submitted on 04 Feb 2026
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Climate

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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:

Anti-science, inactivism, and unsupported conspiracy theories are not ok here.

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Washington Post gutting its climate team | Clean energy dies in darkness. Courtesy of Jeff Bezos. (www.climatecoloredgoggles.com)
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[–] how_we_burned@lemmy.zip 16 points 23 hours ago* (last edited 23 hours ago) (5 children)

It's so silly. Even if you don't understand the science of climate change (which isn't that fucking hard to understand) you can definitely understand this;

  • Solar PV + Battery: ~2.0–2.7 USD/W (2.4~ $/kW)
  • Solar PV standalone: ~1.33–2.74 USD/W
  • Wind (onshore): ~1.46–5.9 USD/W
  • Hydro: ~3.0–5.9 USD/W
  • Coal: ~3.1–5.5 USD/W
  • Natural Gas (combined cycle): ~1.06–1.2 USD/W
  • Oil/peakers (simple turbines): ~0.8–2.6 USD/W
  • Nuclear: ~6.7–8.0 USD/W

Even with batteries solar has the greatest fricken ROI in this list at the cheapest cost.

Fossil fuels are finite. After you pay back your solar panel capex your opex is barely anything and for the next 20-30 you have free fucking energy.

Jeebus, even if you don't give a shit about the environment picking anything but renewables is like the dumbest decision you can use your money on.

[–] sharuum@piefed.social 1 points 21 hours ago

It may become cheaper once they cut all the various safety and environmental regulations

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