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:

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

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One of Australia’s most prestigious universities promised to divest from fossil fuels in 2016. It later revised this decision to say it would only divest from coal, allowing the country’s biggest oil and gas company, Woodside, to fund and name a center. As that partnership comes up for renewal at the end of 2025, students and faculty are pushing the university to reconsider.

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Archived copies of the article:

The key thing here is that the less overshoot the better, and the amount of overshoot we can afford is small.

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The paper is here

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“All models are wrong” could just mean that all models include some idealizations or abstractions. And just as Box says, models that employ such idealizations and abstractions can still be advantageous. Indeed, a highly idealized model that leaves out tons of real-world processes will be much easier to understand than a model that tries to capture, say, every gust of wind and every drop of rain.

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This post uses a gift link with a view count limit. If it runs out, there is an archived copy of the article

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A Senate tax package softens some blows imposed on renewables by a House version of the bill. But it still terminates many credits for clean power.

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The paper is here

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