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I’m in Texas to see the future (www.gatesnotes.com)
submitted 8 months ago by kalkulat@lemmy.world to c/climate@slrpnk.net
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"If you want to see what the cutting edge of next-gen clean energy innovation looks like, it’d be hard to find a place better than Texas. Amazing companies are breaking ground not just here in Southeast Texas but across the state. Each one represents a huge boon for the local economy," - Bill Gates

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[-] silence7@slrpnk.net 3 points 8 months ago

Quick run-down:

e-fuels: equivalent of $45/gallon gasoline with today's tech. Might get that down to $15/gallon if it scales up. It's plausible for aviation, but other choices (eg: electric) are cheaper for surface transport

carbon materials: tiny amounts of CO2 if it can be made cost-effective

DAC: in general, this has the problem of being vastly more expensive than not emitting in the first place. That's why the IPCC considers it to be a tiny and expensive part of what needs to happen in the next few years.

this post was submitted on 31 Mar 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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