Air Quality

More on How the Vaccine Mandate Cases May Impact Climate Policy

How much is the Court likely to prune back EPA’s powers?

In a Friday post, I sketched some thoughts about how the Supreme Court’s vaccine mandate rulings might impact EPA’s power to control carbon emissions.  I think it’s worth unpacking both the Court’s opinions a little more and the issues at stake in a pending climate change case, West Virginia v. EPA. The Court ruled in …

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Everyday Christmas: The Gift of the Commons

Clean air. Clean water. We receive these public goods every day without payment

One of the Christmas classics is the Jimmy Stewart movie, It’s a Wonderful Life. George Bailey, Stewart’s character, is despondent about his life but then learns how much he has unknowingly helped others and how grateful they are. It’s heartwarming, if also a bit corny. There’s a flip side to that story: the need to remember …

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The Latest Chapter in Los Angeles’ Century-Long Water War With the Eastern Sierra’s People & Environment

LADWP’s Unilateral Revocation of Water Allocation to Mono County’s Farmers & Ranchers Triggers County’s CEQA Challenge

There LADWP goes again. Recently the Los Angeles Department of Water and Power announced it was walking away from its longstanding obligation to provide Mono County residents and the environment with a tiny fraction of the water it transports from Mono County to LADWP’s urban customers in Los Angeles.  When efforts by county officials to …

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It’s Time to Repeal the Clean Power Plan

The CPP no longer serves any useful purpose, and keeping it on the books invites mischief by the Supreme Court.

The Clean Power Plan (CPP) was the Obama Administration’s signature climate effort. This 2015 regulation aimed to move state power grids away from coal and toward renewable energy. It immediately became ensnared in litigation and never went into effect. It’s now considered irrelevant for all practical purposes. Yet the Supreme Court is now set to …

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Aggregating the Harms of Fossil Fuels

They’re even worse than you probably thought.

The decision at the Glasgow climate conference to phase down fossil fuels is an important step forward — and not just because of climate change.  We think of fossil fuels as a source of climate change, but that’s only a one part of the problem. From their extraction to their combustion, everything about them is …

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Tackling Agricultural Methane: Monitoring and Policy Strategies

A review of inventory, monitoring, and regulatory tools needed to reduce agricultural methane emissions

(This post was authored by Eric Peshkin, a JD candidate at NYU School of Law and CLEE summer research assistant) Last week, global leaders announced a commitment to reducing global methane emissions. In a previous blog post, I briefly reviewed some of the innovative strategies to reduce methane emissions from agricultural livestock and rice operations, …

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California Enacts Historic Housing Reform Laws

Legislation Promotes New Housing, Infill Development, & Reduced Air Pollution

The California Legislature recently enacted, and Governor Gavin Newsom last week signed into law, two major housing reform measures.  SB 9 and SB 10 represent California’s most transformative new housing laws in decades, and are a belated but welcome legislative response to the state’s longstanding housing crisis. SB 9, authored by California State Senate leader …

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What If We Succeed?

If we “beat” climate change, what will we have to show for it?

Suppose we bring climate change under control and deal with its fallout. What will have we achieved? We will have prevented great harm. That, of course, is the main goal. Untamed climate change means an dangerous, ugly future for all of us on “Spaceship Earth.” Preventing that future is surely enough of a reason to …

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Blue Skies and Wildfire in California

An opinion piece in the NY Times reveals a disconnect between history and what we expect from wildfires and air quality

There’s a lot of news coverage about the wildfires on the West Coast right now, and rightly so. But with that news coverage comes a lot of commentary, some of which might lead us down the wrong policy path. I want to highlight an example from the New York Times opinion page, not because it …

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Why I Was Wrong About Methane

I didn’t think cutting methane was a high priority. Now I do. Here’s why.

I didn’t use to think that eliminating methane emissions should be a priority. True, methane is a potent greenhouse gas. But it’s also a short-lived one, which only stays in the atmosphere for twenty years or so. In contrast, CO2 emissions cause warming for 2-3 centuries or more. So methane emissions seemed to be something …

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