this post was submitted on 19 Jul 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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Republicans are trying to thwart the president’s power to declare a climate emergency amid record-breaking heat (www.levernews.com)
submitted 1 year ago by rusfairfax@lemmy.world to c/climate
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From David Sirota’s The Lever

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[–] snooggums@kbin.social 2 points 1 year ago (1 children)

In rural areas where population is the issue and not zoning, that is true.

In any city with 10 thousand residents or more it tends to be the zoning that keeps stores from opening up in the suburbs and other new development. There they tend to go big becsuse they are far enough away that they might as well be big enough to draw from as far away as possible.

Most people live in the latter areas and that is what is being discussed.

[–] Skyrmir@lemmy.world 0 points 1 year ago

They're talking about replacing cars with public transportation which is fucking ridiculous for the majority of the country due to low population density and large distances. There's no amount of zoning changes that are going to fix that. Also, creating walkable cities is a great goal, with zero chance of happening in the US. It would be asking home owners and businesses to throw away existing investments, or forcing them to. Guess how well either of those options is going to go over. Especially in an aging populace with nothing but investment income.