this post was submitted on 31 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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These school buses no longer belch pollution. They also give the grid a break. (www.motherjones.com)
submitted 2 months ago by [email protected] to c/[email protected]
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[โ€“] [email protected] -4 points 2 months ago (1 children)

The batteries are there but you also need the expensive bidirectional chargers, software and hardware support in the vehicle, and you need the grid at some random school to be able to cope with tens or hundreds of kilowatts of feed-in power. There's quite a lot involved in connecting a vehicle's battery to the grid.

This setup only makes sense as long as batteries are expensive, and that won't be the case for very long. The logistics of grid storage are much simpler when you don't have the vehicle or chargers to deal with and can connect straight to a high voltage line.

[โ€“] [email protected] 12 points 2 months ago

Future this future that. The batteries are still expensive now.

expensive bidirectional chargers, software and hardware support in the vehicle

In comparison all those things are negligible in terms of cost. Its already completely standard equipment thats being mass produced.

tens or hundreds of kilowatts of feed-in power

No. This is not required. You can just feed into the grid through a standard wall plug or whatever is used in the US. This is a well proven method and works exactly like with solar power feed in. The current can be limited to whatever the hardware supports. However if you build charging stations, then these will already be capable of the power levels that you are talking about, so it wouldnt even be an issue.