this post was submitted on 06 Mar 2025
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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.

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A longer article about energy costs, especially heating, and climate adaptation efforts, and how right-wing parties are profiting from fake populism about cheap fossil energy needs.

A relevant snippet:

In times of extremely high living costs, carbon pricing not softened by support measures is of enormous social and political significance: those who can afford to renovate or install renewable energy sources will be less impacted, whereas those who are poor or renting will have to spend much more of their income on heating costs and will furthermore be unable to free themselves of the dependency on CO2. Across Europe, a dispute over carbon pricing has erupted.

“We are currently seeing attempts by the conservative and right-wing factions in the European Parliament as well as by member states and the business community to undo climate efforts,” says Green Party MEP Michael Bloss. “It would make sense to start working now on establishing programmes for the potential revenues so money can be paid out directly from 1 January 2026. Otherwise, there is a risk of the ETS2 becoming a social trap from 2027.”

...

According to Sibylle Braungardt from the Öko-Institut in Freiburg, there are large subsidy programmes in Germany for energy-efficient renovations and replacements of heating systems by more sustainable alternatives. However, it is mostly high-income households taking advantage of these programmes. “It’s problematic if homeowners can renovate and install heat pumps to pay their way out of carbon pricing but renters cannot.”

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[–] Nyssa@slrpnk.net 3 points 2 days ago

Are there any mechanisms where landlords can be driven to adopt the alternatives that homeowners are utilizing?