this post was submitted on 02 Jul 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.

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Yes, you should be a little freaked out about Hurricane Beryl (arstechnica.com)
submitted 5 months ago by [email protected] to c/[email protected]
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[โ€“] [email protected] 15 points 5 months ago (1 children)

Not just early July. A full 16 days earlier than the previous record from 2005. The record before that was Allen(so the first hurricane of the season) all the way back in August 5 of 1980.

They also used to be rare, and are getting less so. Since 1924, only 39 are known. Since 1960, there have been 30. 8 of those(so ~20%) are since 2016.

[โ€“] [email protected] 9 points 5 months ago

Iirc they're talking about adding more category levels too because 5 just doesn't cut it anymore.