this post was submitted on 25 Sep 2024
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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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Europe’s Heat Pumps Put America’s to Shame | If switching one home to a heat pump improves energy efficiency, why not whole cities? (www.theatlantic.com)
submitted 1 month ago by silence7 to c/climate
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[–] baru@lemmy.world 4 points 1 month ago

In Netherlands the fixed cost for city based heating is paid by the people who make use of it. That seems fair, but practically it means that it'll be cheaper for people to arrange their own heating system and rely on electric heating. This because the fixed cost is high. However, if everyone switches to using electricity the city based heating would overall be much cheaper solution than relying on electricity. This as currently loads use a gas solution and there's a huge cost involved to upgrade the electricity network.

The city based heating variable price is connected to the gas price. So even if city based heating per kWh equivalent would be cheaper, people wouldn't notice or get the advantage.

As a result, city based heating is very unpopular. Planned projects to switch entire neighbourhoods have been cancelled. Again, logical because people were really upset to pay significantly more despite insulating their entire home.

Seems that in Netherlands they'll ignore the problem and have the country be less cost effective and upgrade the electricity network for significantly more money.

The Dutch Financial Times did a few articles on above in the last 12 months or so.