this post was submitted on 06 Mar 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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40% of global ship traffic is simply moving fossil fuels around! Renewables make much of this traffic obsolete (slrpnk.net)
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[–] SaveTheTuaHawk@lemmy.ca 1 points 12 hours ago (1 children)

Asphalt for pavement and shingles is amaong the most recycled materials on the planet.

Not how you think. The asphalt is ground up for the mineral content then mixed with new bitumen.

Soap and shampoo can be made from animal fat or vegetable oil.

Most of it is. Cheapest way to do it.

Hydrogen can be made from water. You get oxygen too.

By wasting a lot of electricity.

[–] UPGRAYEDD@lemmy.world 3 points 11 hours ago* (last edited 11 hours ago) (1 children)

Hydrogen can be made from water. You get oxygen too.

By wasting a lot of electricity.

Just curious, how is the majority of hydrogen produced/mined/farmed now?

I kinda always assumed it was electrolysis just because the process is so simple.

[–] shane@feddit.nl 3 points 8 hours ago

Most hydrogen is currently produced from methane, meaning natural gas. It's a huge source of carbon dioxide.