this post was submitted on 17 Jun 2024
55 points (98.2% liked)

Climate - truthful information about climate, related activism and politics.

5246 readers
336 users here now

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:

Anti-science, inactivism, and unsupported conspiracy theories are not ok here.

founded 1 year ago
MODERATORS
silence7@slrpnk.net
55
Construction equipment is going electric. Here’s what it’s like behind the wheel. (wapo.st)
submitted 5 months ago by silence7@slrpnk.net to c/climate@slrpnk.net
10 comments fedilink hide all child comments
 

I tested a 55,000-pound electric excavator. New ways to power off-road machines, which mostly run on diesel, could cut about 3 percent of U.S. carbon emissions.

you are viewing a single comment's thread
view the rest of the comments
[–] OutsizedWalrus@lemmy.world 1 points 5 months ago

One thing that is beneficial is efficiency of internal combustion engines tends to scale with size.

One met generator is more efficient that smaller engines on each vehicle.

—

Also, a lot of small equipment isn’t being used all day. You might dig a trench, work in it all day, then fire the machine back up to fill the trench.