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Sierra Club is a major US environmental nonprofit advocating for conservation, clean energy and climate policy, often through litigation and public campaigns.
Five environmental groups asked a federal appeals court to review the Trump administration's cut of 2031 fuel economy targets to 34.9 mpg from a projected 50.4. Automaker and fleet plans built on the looser target now depend on a rule the petitioners want stopped.
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NHTSA projects the Trump administration's final fuel economy rule will leave the 2031 fleet average at 34.9 mpg, down from 50.4 mpg under Biden-era rules. For automakers, the harder question is how long the lower target lasts, and a Kelley Blue Book editor gives it two to three years.
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The agency is finalizing its repeal of the Biden-era greenhouse gas rules for power plants and proposing to eliminate what remains, opening a 45-day comment window as US electricity demand climbs again.
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Stijn Van Nieuwerburgh's $800 billion adds up mortgages, syndicated loans and project debt across AI's physical infrastructure, and he says loans going bad there would cut what banks can lend everyone else.
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The EPA finalized its repeal of the 2024 power plant carbon standards on Monday. The case that this is a supply decision for AI load comes from a sustainability consultant who gives coal three to five more years.
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Making minor-source disclosure voluntary hands the call to states and hides the permit-splitting that turned Northern Virginia into a 27-gigawatt diesel fleet.
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Local opposition stalled at least 75 projects worth about $130bn in three months, according to Bloomberg. That belongs in the capacity plan, not the comms plan.
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