this post was submitted on 05 Oct 2024
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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.

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[โ€“] FunderPants@lemmy.ca 7 points 1 month ago* (last edited 1 month ago) (1 children)

When I was a kid there was little more Canadian than ice hockey on the frozen ponds. Now, the ponds are roped off with warning signs and we have to play in the rink all winter. We've given up a piece of the culture and, looking at the oil fields and the SUV/Pick up trucks in every driveway, I know we did it to ourselves.

[โ€“] silence7 5 points 1 month ago

Yeah, the ice is thinner, and very likely weaker for a given thickness, so the old rules of thumb about 10cm of ice being enough may not hold.