this post was submitted on 10 Sep 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.

Recommended actions to cut greenhouse gas emissions in the near future:

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[–] FarceMultiplier@lemmy.ca 3 points 1 year ago (3 children)

We really need the new battery technology that we've been promised for the past 2 decades. Electricity doesn't have weight. It's how we store it, and there's got to be a lighter and less toxic way.

Honestly, I don’t think it will help. People already massively overbuy battery range for their EV “just in case”. Why get 200 miles of range when you can get 400 miles? It’s just like how people buy huge trucks just in case they need to buy lumber twice a year. Bigger car? Heavier car? Who cares!

[–] juliebean@lemm.ee 3 points 1 year ago

if we were willing to make and drive slower, lighter cars, and adapt our cities to them, we'd already be there. but so long as electric vehicles need to have equivalent speed, range, and size as big gas vehicles, they're gonna need a lot of heavy batteries. the lithium batteries we've got nowadays are crazy efficient in terms of energy stored per kilogram, but the cars demand so much energy. i'd love to be able to replace my car with an NEV, but alas, i legally would not be allowed to even go to the nearest grocery store with it, let alone my job.

[–] Pyro@pawb.social 1 points 1 year ago (1 children)

The vapor that is the future of battires. We keep getting better stuff and then some problems happen with production or the science is just wrong after deeper research. IT SUCKS!

Also electricity does have weight

[–] GreyEyedGhost@lemmy.ca 3 points 1 year ago

Batteries have gotten 6 to 10 times better in the last 30 years. Just like every other field of research, not every idea is (currently) commercially viable, but advances still regularly occur.