this post was submitted on 21 Aug 2024
75 points (100.0% liked)

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

5240 readers
446 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
[email protected]
75
Many nations have embraced burning wood pellets to produce electricity — under the assumption that it is carbon neutral. But research shows this approach can boost greenhouse-gas emissions (www.nature.com)
submitted 2 months ago by [email protected] to c/[email protected]
14 comments fedilink hide all child comments
you are viewing a single comment's thread
view the rest of the comments
[–] [email protected] 4 points 2 months ago (2 children)

you’re missing the point a little though… if you plant a tree, let it grow, burn it, it has consumed the co2 that you release from burning it to grown the tree

so if you’re burning a tree, planting a new one, and letting it grow to the maturity of the original tree, that’s… similar-ish

the devil is in the detail because transport and a bunch of other concerns come into play, but it’s not as simple as just burning things because there’s a carbon capture step too

[–] [email protected] 3 points 2 months ago

Totally agreed ... IF you plant a tree, and let it grow, then pellitize and transport it in a green way, then burning it won't release more hydrocarbons than it accumlated.

[–] [email protected] 1 points 2 months ago

As I said downthread:

The key thing about this is that when you build a power plant which burns wood pellets, it takes a whole lot of mature forest, and converts it into CO2; you go from a whole bunch of mature trees to a mix of trees of varying ages. So something like half the carbon in the forest is in the atmosphere for as long as the power plant is in operation.