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PM2.5

Evolving Air Quality Standards

The standards have gotten tougher. Compliance still lags.

The goal of the Clean Air Act is to achieve national ambient air quality standards (NAAQS), with the primary requirement being protection of public health. As our understanding of the health effects of air pollution has improved, there has been a general trend toward tightening the standards. However, it’s very hard to keep track of …

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How Garden-Variety Air Pollution Regulation Promotes Environmental Justice

Cleaning up our nation’s air benefits the disadvantaged most of all.

Evidence is mounting that air pollution regulation is an effective way of reducing health disparities between disadvantaged communities and the population as a whole. The basic reason is simple: Air pollution is the biggest environmental threat to poor communities and communities of color. As the American Lung Association has said: “The burden of air pollution …

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A Taste of Things to Come

Welcome to 2023. It’s going to be a wild ride.

In the past week, we’ve gotten a glimpse of what the next two years will look like. On the one hand, chaos in Congress. On the other hand, quiet progress toward environmental goals by the Biden Administration. Both trends are likely to continue throughout this Congress and the second half of the presidential term. The …

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Pollution Control as Climate Policy

Tightening air quality standards will also reduce carbon emissions.

The Biden Administration is slowly grinding away at an important regulatory task: reconsidering the air quality standards for particulates and ozone. Setting those standards is an arduous and time-consuming process, requiring consideration of reams of technical data. For instance, a preliminary staff report on fine particulates (PM2.5) is over 600 pages long. When the process …

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Air Quality as Environmental Justice

National air quality standards may be among the most powerful levers for environmental justice.

The environmental justice movement began with a focus on neighborhood struggles against toxic waste facilities and other local pollution sources. The EJ focus now includes other measures to ensure that vulnerable communities get the benefit of climate regulations. The most powerful tool for assisting those communities, however, may be the National Ambient Air Quality Standards …

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Get Ready for Phase 2 of the Deregulation Wars

Air quality standards are next on the chopping block.

The first phase of Trump’s regulatory rollbacks has been directed against Obama’s climate change regulations. Those deregulatory actions will be finalized soon. What happens next will be in the hands of the courts. But the Trump EPA is now beginning a new phase in its attack on environmental regulation. Having tried to eliminate climate rregulation, …

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Shackling EPA Risk Assessment

EPA’s scientific advisory committee, which is packed with industry representatives, wants to make it a lot harder to prove pollution is dangerous.

Why the New Climate Reg for Coal is a Perfectly Normal EPA Rule

EPA’s approach isn’t a novel innovation. It’s just EPA applying its usual approach.

EPA’s New Power Plant Rules Have Dropped. What Happens Next?

Media battles. Lawsuits. Stay requests. And political mayhem.

We Need a True Debate Over Income-Graduated Fixed Charges

A state bill to cap the fixed charges utilities can collect in California would shut down an important debate about equity and rate design. Here’s a better way forward.

Could Trump Cancel the IRA?

Probably not. But also possibly yes.

Climate Action for Earth Day

“We have a long way to go, but we’ve started down the path.” I asked my UCLA Emmett Institute colleagues what climate actions give them hope on Earth Day. Here’s how they answered.

A New Era for Protecting Public Lands

The Bureau of Land Management has always prioritized extraction activities. Now the agency has announced a rule that could elevate conservation.

Don’t Count Your Judicial Vultures Before They Hatch

The conservative Supreme Court majority may turn out as bad as we fear. Or maybe not.

Filling in the Picture: The Latest From Kennedy about Climate

Here’s what Kennedy says about his campaign, its effect on the race, and climate change.

Five Myths and Half-Truths About California Cap and Trade

California has spent years fine-tuning its trading system, with results that aren’t always easy to gauge.

U.S. Supreme Court Revisits, Tightens Regulatory Takings Limits on Land Use Regulation

California Homeowner’s Takings Challenge to County’s Traffic Impact Fee Heads Back to State Court

California Wins Major Clean Air Act/Climate Change Case in D.C. Circuit

U.S. Court of Appeals Rejects Red States’ Challenge to California’s CAA “Waiver Authority”

Florida is a Climate-Denying Hellscape

Florida lawmakers want to erase climate change from their laws and ban local heat protection ordinances ahead of what could be another summer of record-breaking heat.

U.S. Supreme Court Revisits, Tightens Regulatory Takings Limits on Land Use Regulation

California Homeowner’s Takings Challenge to County’s Traffic Impact Fee Heads Back to State Court

Election 2024: The Current Outlook

The White House and the House are still up for grabs; Republicans are favored in the Senate.

A Word on Congestion Pricing

Time for local leaders to restart the discussion

The ‘Year of Climate’ in International Courts

Guest contributor Rebecca Hamilton previews several opinions that touch on the question of the international legal obligations of States in light of the climate emergency.

Ranking the Candidates’ Focus on Energy & Climate

Some campaign websites mention these issues only in passing. Others went into more detail.

No, EVs are Not Worse for the Planet

There’s an electric car culture war raging. It doesn’t hurt to say obvious things, like that electric cars reduce driving costs and pollute far less than gas-powered cars.

A Total Eclipse of the Heat

The eclipse mania gripping U.S. media and the entire nation is an opportunity to gaze in awe at the climate crisis we’ve unleashed and talk about our collective response.

Power of the People: Environmental Advocacy in China

Several of China’s most prominent environmental advocates will join a keynote talk at UCLA Law on the role of civil society in addressing China’s global environmental impacts.

PM2.5

The standards have gotten tougher. Compliance still lags.

Cleaning up our nation’s air benefits the disadvantaged most of all.

Welcome to 2023. It’s going to be a wild ride.

Tightening air quality standards will also reduce carbon emissions.

National air quality standards may be among the most powerful levers for environmental justice.

Air quality standards are next on the chopping block.

TRENDING

EPA’s approach isn’t a novel innovation. It’s just EPA applying its usual approach.

Media battles. Lawsuits. Stay requests. And political mayhem.

A state bill to cap the fixed charges utilities can collect in California would shut down an important debate about equity and rate design. Here’s a better way forward.

Probably not. But also possibly yes.

“We have a long way to go, but we’ve started down the path.” I asked my UCLA Emmett Institute colleagues what climate actions give them hope on Earth Day. Here’s how they answered.

The Bureau of Land Management has always prioritized extraction activities. Now the agency has announced a rule that could elevate conservation.

The conservative Supreme Court majority may turn out as bad as we fear. Or maybe not.

Here’s what Kennedy says about his campaign, its effect on the race, and climate change.

California has spent years fine-tuning its trading system, with results that aren’t always easy to gauge.

California Homeowner’s Takings Challenge to County’s Traffic Impact Fee Heads Back to State Court

U.S. Court of Appeals Rejects Red States’ Challenge to California’s CAA “Waiver Authority”

Florida lawmakers want to erase climate change from their laws and ban local heat protection ordinances ahead of what could be another summer of record-breaking heat.

California Homeowner’s Takings Challenge to County’s Traffic Impact Fee Heads Back to State Court

The White House and the House are still up for grabs; Republicans are favored in the Senate.

Time for local leaders to restart the discussion

Guest contributor Rebecca Hamilton previews several opinions that touch on the question of the international legal obligations of States in light of the climate emergency.

Some campaign websites mention these issues only in passing. Others went into more detail.

There’s an electric car culture war raging. It doesn’t hurt to say obvious things, like that electric cars reduce driving costs and pollute far less than gas-powered cars.

The eclipse mania gripping U.S. media and the entire nation is an opportunity to gaze in awe at the climate crisis we’ve unleashed and talk about our collective response.

Several of China’s most prominent environmental advocates will join a keynote talk at UCLA Law on the role of civil society in addressing China’s global environmental impacts.