this post was submitted on 20 Dec 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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Amazon’s Boiling River gives scientists a window into the rainforest’s future (news.mongabay.com)
submitted 1 week ago by Joker@sh.itjust.works to c/climate@slrpnk.net
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Key Ideas

  • Scientists studying Peru’s Boiling River found 11% fewer tree species for every 1°C (1.8°F) increase in temperature, offering insights into how climate change might affect the Amazon Rainforest.
  • The research team discovered that hotter areas not only had fewer species overall but were dominated by heat-tolerant trees that typically grow in the warmest parts of South America.
  • The study site is protected by Indigenous Asháninka people as sacred land, but the forest still faces threats from nearby deforestation and fires, reflecting broader challenges across the Amazon.
  • The Amazon is experiencing climate pressures, with fire-affected areas in the Brazilian Amazon increasing 18-fold in September 2024, covering a combined area nearly the size of the Netherlands.
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