Climate

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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:

Anti-science, inactivism, and unsupported conspiracy theories are not ok here.

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Republican lawmakers are advancing legislation that would shield major polluters from legal accountability for climate change harms.

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cross-posted from: https://lemmy.world/post/44252191

Today is the International Day of Action for Rivers.

Climate Change, Deforestation, Upstream Dams and Diversion, Urbanization, Population Pressure are the most acute reason behind the dying situation of a mighty river like Padma. Changes in weather patterns and shifting precipitation regimes have led to reduced rainfall and altered river flow. These changes disrupt the natural balance of water in the river. Unregulated deforestation along the river basin has resulted in soil erosion, siltation, and reduced groundwater recharge. This, in turn, impacts the river's ability to maintain a healthy water flow. Construction of dams and diversion of water for various purposes upstream significantly reduces the water reaching downstream areas, including the Padma River. The gradual drying of the Padma River carries several grave consequences like Ecological Impact, Environmental Degradation, Agricultural Disruption, Water Scarcity, Economic Fallout and many others. Reduced water flow disrupts the river's ecosystems, affecting aquatic life, wetlands, and biodiversity. Farmers who rely on the river for irrigation face challenges, leading to decreased agricultural productivity. As the river's water levels drop, it directly impacts the availability of drinking water for communities living along its banks. The drying of the river can lead to increased pollution, sedimentation, and loss of natural habitats.

Photographer: Asker Ibne Firoz

CC BY-SA 4.0

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US solar capacity installations fell 14% in 2025 compared with the previous year

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Underlying this is a jet stream gone wild, Maue and Chenard said.

The jet stream is the river of air that moves weather from west to east on a roller coaster-like path. Usually, the plunges are as mild as a kiddie roller coaster. But now that jet stream is barreling down near-vertical, scream-inducing drops, followed by straight-up ascents.

“Which means you get a lot of extremes next to each other,” Maue said. Storm fronts coming from the Pacific hit that high pressure heat dome in the Southwest and are pushed north to climb that mountainous jet stream peak, “grab access to that cold air reservoir up there” and bring it back down south down the other side of the hill, he said.

Numerous studies have connected unusual jet stream and polar vortex activity to shrinking Arctic sea ice and human-caused climate change.

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The papers are here and here. The first paper is paywalled, the second is open-access.

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As countries scramble to secure oil, gas and fertilizer, China’s bets on clean energy and coal are cushioning its dependence on oil and gas imports.

The coal part isn't so great though.

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The Trump administration is reviewing proposals to break up one of the world’s leading climate and weather laboratories, transfer its work to universities and private companies, take away its aircraft, and sell its property in Boulder, Colo.

The lab in question is NCAR, the National Center for Atmospheric Research.

You can submit public comments here

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The key thing here is that they're good for two kinds of things:

  • LLMs can do things like write SQL queries or visiualization software
  • ML can be used to do a better job of approximations in some situations
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It's almost like Republicans want oil to be ridiculously expensive and to force us all to buy it.

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