this post was submitted on 01 Jan 2026
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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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We were supposed to have gone net zero by now: that was XR’s central demand, when we formed it, seven years ago. Can we all please at last acknowledge and take seriously the utter failure to do so? Only such acknowledgement will prevent us from continuing collectively to basically ignore the increasingly pressing need to actually focus resources on a strategy beginning with climate adaptation. We should admit that widely-mandated climate optimism has been actively harmful to the needful acknowledgement of reality – and to the active collective self-protection that we now desperately need to get serious about making happen.

[...]

Here at the end of 2025, we are already living with the consequences of delay. Flooding, heatwaves, droughts and wildfires are no longer rare events; they are becoming features of normal life. And in some cases – look at California, or Sri Lanka, or (closer to home) at the many floodplains that have been and will be built on – the consequences of their not being taken seriously enough as our new never-normal have been deeply disastrous, or indeed very deadly. The idea that we can still prevent at source very serious damage is an illusion. What we can do is reduce harm, protect the most vulnerable and adapt in ways that for starters do not worsen the problem.

This is the moment to prioritise resilience at every level — from reinforcing critical infrastructure to strengthening the social fabric of communities on the frontline of climate impacts, from learning from how global South frontline communities have already been practising transformative adaptation to shared inner work turning climate despair into climate courage.

I'm not sure how much I agree with this, but I certainly found it thought-provoking.

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[–] Rhaedas@fedia.io 4 points 23 hours ago

Technically we probably missed it even by the first Earth Day in 1970. Repercussions of what we started in the 20th century took a lot of time to manifest evidence, with the oceans probably acting as a filter to hide most of it, until it couldn't.

But the Paris Accords, the IPCC, all the rest, yeah it's a joke.