this post was submitted on 29 Oct 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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How Vintage Nike Airs Exposed a Flaw in a $700 Million Carbon Market | Everything from wildfires to fraud adds risk for investors in carbon offsets. New questions about how the market insures itself (www.bloomberg.com)
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TL;DR;

Nike used to put SF6, a greenhouse gas which causes 24300 times more warming than CO2 over 100 years, in the "air" cushions in their shoes. Nike stopped, and sold carbon offsets based on the counterfactual of what the world would be like if they kept putting it in shoes. These offsets are part of the "buffer pool" to compensate for the fact that some offsets turn out to be bogus or simply fail due to unanticipated consequences.

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[–] scytale@lemm.ee 5 points 1 week ago

I have a pair of basketball shoes that have the Air technology. My other pair uses the more modern React cushion. Having said that, I'm never buying Nike again after a brief sneakerhead phase. I go for smaller orthopedic brands instead. They're more comfortable too.