this post was submitted on 15 Oct 2025
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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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cross-posted from: https://lemmy.sdf.org/post/44101271

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  • Brazil’s government has signed a 30-year contract to privatize a section of the BR-364 highway, a key part of its plan to create an overland corridor to Peru to streamline commodity exports to China.
  • Critics warn that expanding the highway into well-preserved rainforest risks repeating its history by attracting illegal loggers and land grabbers, a pattern that previously cleared vast areas for agriculture.

[...]

Fueled by soybean, corn and beef production, [the Brazilian state of] Rondônia is now one of Brazil’s leading agribusiness states, where a pro-deforestation mindset prevails, rooted in a population largely disconnected from the forest, rivers and traditional Amazonian culture. This view gained renewed momentum under Jair Bolsonaro, the far-right president from 2019-2022, who won all 52 of Rondônia’s municipalities in both the 2018 and 2022 elections.

Cutting across Rondônia, BR-364 has become a key route for moving grain, beef and minerals to ports on the Madeira River in Porto Velho. From there, commodities from Brazil’s central-west region are shipped downriver to foreign markets via the Atlantic Ocean.

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[–] klammeraffe@lemmy.cafe 7 points 1 day ago

So much for green china