this post was submitted on 17 Aug 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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Death rates from energy production per TWh (ourworldindata.org)
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First post on the fediverse. Hopefully it auto loads the link photo but if not I'll put it as the first comment. Sorry for anything incorrect in handling this.

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[–] schroedingershat 1 points 1 year ago

What you're after is an LCA of a specific instance of new technology (which attempts to measure the sources of harm in context) rather than a context-stripped summary of a complex subject drawing arbitrary lines designed to create a bad faith talking point. Anyone reducing it to a single number is making a bad faith propaganda point one way or the other. You won't find any credible version of it because it's not a credible exercise.

The uranium that feeds the canadian project (excluding the historical tens of thousands of native deaths from intentional waterway poisoning) is harmless compared to what is happening in Arlit or Adapa (the harms of which are just beginning and are actively covered up). All estimates (by anti-nuclear advocates or by nuclear shills) of chernobyl are poor. Arbitrarily excluding santa susanna or windscale or mayak is done without reason. The risk profile of a 200kW wind turbine is vastly different to a 3MW one or a 15MW offshore one. Utility solar is nothing like rooftop. Countries with mandatory working at height safety equipment have vastly different risk profiles than those without.

Acknowledge that the harms are low for the bottom four options if they are done properly, then actually enforce doing them properly rather than using it as ammo to justify the horiffic (and rising) pollution from uranium milling, mining and plutonium extraction whilst exaggerating having one person die in an entire country's utility solar program. And also treat mining for rare earths for either magnets or obsolete USA-based thin film solar or burnable neutron poison the same way holding both to the exact same standards per unit of energy.

Treat all waste from all options the same way (non-recycled waste must be only a few dozen kg per lifetime of energy and it must be permanently dealt with before profit is disbursed).

Treat danger from all options the same way. Disaster cleanup (be it oil spills or radiation or a dam burst) must be fully collaterised with no liability limit from assets that won't crash if something happens.