this post was submitted on 06 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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Instead it is an argument to get to work building that kind of social trust in as many places as possible, because we’re going to need it. We’ve come through 75 years where having neighbors was essentially optional: if you had a credit card, you could get everything you needed to survive dropped off at your front door. But the next 75 years aren’t going to be like that; we’re going to need to return to the basic human experience of relying on the people around you. We’re going to need to rediscover that we’re a social species, which for Americans will be hard—at least since Reagan we’ve been told to think of ourselves first and foremost (it was his pal Margaret Thatcher who insisted ‘there is no such thing as society, only individual men and women.”) And in the Musk/Trump age we’re constantly instructed to distrust everyone and everything, a corrosion that erodes the social fabric as surely as a rampaging river erodes a highway.

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[–] [email protected] 3 points 1 year ago

... remember the 21st century’s most important physical fact: warm air holds more water vapor; July set a new record for U.S. thunderstorms

aka hot, wet & stormy.