this post was submitted on 15 Sep 2023
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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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Oil companies granted licences to store carbon under the North Sea (www.theguardian.com)
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[–] WhatAmLemmy@lemmy.world 1 points 1 year ago* (last edited 1 year ago)

The point isn't whether or not to invest in carbon capture tech. The point is that carbon capture tech is inconsequential to the climate crisis on any relevant timescale, and the #1 reason used to justify continued emissions by every major contributing industry, even though THEY KNOW that it is at least 30+ years away from being economically viable on any scale that could justify it as a solution (when we're already at 2–3c).

The ONLY way we have a reasonable chance to avoid a 2+ c world is to dramatically reduce emissions this decade, by an order of 50+% at least using existing, proven solutions — distant, non-existent, unproven, future-tech can not save us from the present, so don't even bother getting your hopes up.

This Al Gore TED talk should help you understand why.