this post was submitted on 09 Jun 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.

Recommended actions to cut greenhouse gas emissions in the near future:

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What dead flowers tell us about the future of life on Earth | Amid an extinction crisis, dried plant collections capture how the world is changing. (wapo.st)
submitted 5 months ago* (last edited 5 months ago) by silence7@slrpnk.net to c/climate@slrpnk.net
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By poring over nearly 200 of these pressed orchids, collected by botanists between 1886 and 2022 and stored in drawers at Duke University’s herbarium and elsewhere, scientists found that the flowers are now blooming 12 days earlier on average than they did 150 years ago. At this rate, the orchids may eventually bloom before bees are fully out and about, cutting the chances that pollen catches a ride to other pink lady’s slippers and that plants procreate.

Duke University is planning to permanently close their herbarium.

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[–] quercus@slrpnk.net 2 points 5 months ago

Closing a herbarium during the sixth mass extinction 🤡