this post was submitted on 16 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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Beef produces 85 kg CO2e per kg of food. Tofu produces 2.9 kg CO2e per kg of food. (ourworldindata.org)
submitted 2 months ago by testeronious to c/[email protected]
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[โ€“] merthyr1831 24 points 2 months ago (1 children)

it's basic physics: animal products consume more energy (calories) than they produce in food because they exert energy on living - moving, eating, converting food to energy, etc.

Eating a plant directly (or with comparable processing to meat) means less wasted energy (as in calories burned compared to calories produced as food) simply because you're going one step higher (lower?) in the food chain to obtain that energy.

[โ€“] [email protected] 2 points 2 months ago

brb, adapting my digestive system to directly extract energy from rocks.