this post was submitted on 30 Nov 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.

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Airlines Race Toward a Future of Powering Their Jets With Corn | Carriers want to replace jet fuel with ethanol to fight global warming. That would require lots of corn, and lots of water. (www.nytimes.com)
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[โ€“] [email protected] 1 points 1 year ago (1 children)

Viable aircraft batteries are close. Probably not the 'this year' that's in the announcement, but next in 2024.

[โ€“] Mojojojo1993 1 points 1 year ago

Short haul flights. Yes. Because I know they have them. Currently testing. But nothing substantial. Battery isn't ready just yet. Won't be ready for several years. Then plants need to test for 10+ years for safety. Then production and getting them to customers. It's a long way away.

Small planes that can fly for a few hours then recharge are viable.