this post was submitted on 30 Dec 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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[–] Hildegarde@lemmy.world 72 points 8 months ago (7 children)

Electrifying the trucks will not solve the problem. Batteries don't have the energy density to work for long haul trucks.

Zero emissions long haul freight is a solved problem. Electrified rail. It just needs to be built.

Governments are continuing to subsidize trucks instead of building the solution that already exists.

[–] FireRetardant@lemmy.world 40 points 8 months ago (1 children)

There is still last mile/miles concerns. Not every grocer can have a rail spur, but it can be serviced by a local fleet of electric trucks. The ultimate solution is a mix of various electrified transport.

[–] hex_m_hell@slrpnk.net 3 points 8 months ago* (last edited 8 months ago)

Freight trolly has been a thing and is still used in some places. Between trains, freight trolly, and cargo bikes you could cover basically all urban use cases and most rural use cases.

Logistics predatss cars and trucks by quite a bit, the last hundred years has been an aboration masquerading as the norm. Those old solutions can be brought back.

[–] MightEnlightenYou@lemmy.world 3 points 8 months ago

I'm curious what you think the energy density needs to be for it to be viable and why? The way I see it energy density is a very minor factor for this equation but I'm curious to hear your explanation.

[–] CJOtheReal@ani.social 1 points 8 months ago

The energy density isn't a problem. Problem is fine dust.

[–] Hypx@kbin.social -4 points 8 months ago* (last edited 8 months ago)

You want hydrogen trucks for this. It actually has the energy density needed.

[–] sonori@beehaw.org 19 points 8 months ago

Better yet, replace all the long haul routes with electric intermodal rail. That way you don’t take away from battery production, publicly funded roads last longer, and freight gets much cheaper. The main problem is that railroad executives put the rail industry in “managed decline” because their fleet management and organization is so shit that any customer that can will pay a massive premium to never interact with them.

[–] Unlearned9545@lemmy.world 16 points 8 months ago (1 children)

Trains for long haul. Electric trucks for last mile. Existing disel trucks for long haul sparsely populated areas.

[–] Squizzy@lemmy.world 1 points 8 months ago

Swappable batteries could facilitate this too, rail needs a lot of work also

[–] CJOtheReal@ani.social 6 points 8 months ago

No. Put that stuff on fucking rails to reduce the emissions of fine dust in the air

[–] pewgar_seemsimandroid@lemmy.blahaj.zone 1 points 8 months ago* (last edited 8 months ago) (2 children)

hydrogen is the nuclear of energy

edit: in trucks

[–] Donebrach@lemmy.world 1 points 8 months ago

Pretty sure nuclear is the nuclear of energy.

[–] tenshukun@discuss.online 1 points 8 months ago (1 children)

nuclear is the nuclear of energy?

[–] sqw@lemmy.sdf.org 0 points 8 months ago

been following this dude on tiktok since this company was just a gleam in his eye. they making electric plugin hybrid trucks

https://www.tiktok.com/@_edison.motors

https://www.edisonmotors.ca/