this post was submitted on 12 Aug 2024
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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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Nights in Las Vegas Are Becoming Dangerously Hot (www.nytimes.com)
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[–] dingdongmetacarples@lemmy.world 1 points 2 months ago

The farmers have the most senior water rights, so there's a lot of legal hurdles to that solution. It's definitely something that needs to happen though. Letting them go bust means the Southwest US needs to get food from somewhere else, most likely shipped in on trucks. It's not as simple as people make it out.

Heat pumps are AC in reverse, so why's that so much more efficient? And most new homes are built with good insulation and lawns are illegal for new homes. Most grass has been removed and replaced with rocks, only older homes are allowed to keep their lawns. There's cash incentives to get them to remove it though. In fact, Las Vegas has actually decreased it's water usage in the past few decades, while increasing the population.

More energy is used in the US to heat homes than to cool them, so I'm really not seeing why people should live elsewhere. At least not from a pure energy use standpoint.