this post was submitted on 08 Sep 2026
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Climate

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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:

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

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[–] Gradually_Adjusting@lemmy.ca 23 points 2 days ago

The very notion that markets are pricing anything realistically is laughable. Look at Microsoft. Now look at $3.7 trillion dollars. Which would you rather have?

[–] Zedstrian@sopuli.xyz 14 points 2 days ago

Fortune 500 companies ignore many of their negative externalities to avoid negative impacts to their stock prices.

[–] infinitesunrise@slrpnk.net 9 points 2 days ago (1 children)

Top capitalist group finds capitalism inadequate for long-term human survival.

[–] adwijoma@lemmy.ml 2 points 2 days ago

Top capitalist group doubles down.

[–] Arancello@aussie.zone 8 points 2 days ago (1 children)

Here in Australia climate risks are absolutely priced in. You should see how much it costs to insure houses now. Something like 25% of home owners in some regions cant afford home insurance now.

[–] Cricket@lemmy.zip 5 points 2 days ago* (last edited 2 days ago)

I would say that the insurance industry is at the forefront of pricing this stuff in because they have been directly feeling the effects of it for a while now. Most other industries that are not directly affected right now are likely lagging way behind.

[–] veganpizza69@lemmy.vg 8 points 2 days ago (1 children)
[–] Cricket@lemmy.zip 3 points 2 days ago* (last edited 2 days ago)

FYI, you can link communities so that they will point to the local copy on each person's native Lemmy instance like this:

!uninsurable@lemmy.world

[–] AbouBenAdhem@lemmy.world 6 points 2 days ago

“It’s not priced in by the markets,” BlackRock’s Louise Kooy-Henckel said at an event in Hong Kong on Monday. “But it is potentially also the chronic risks where institutional capital can come in because of the investment horizon.”

Does institutional capital price in the risk of scenarios in which the institutions cease to exist?