Central Valley

Interpreting the Clean Air Act After Chevron’s Demise

A map of Californias Central Valley highlighting regions in shades of red, orange, and yellow, indicating different data zones across cities like Fresno, Visalia, Bakersfield, and Modesto.

A recent Ninth Circuit case requires states to do more to achieve clean air goals.

Last week, the Ninth Circuit decided Committee for a Better Arvin v. EPA, which is both a significant air pollution case and an interesting case study in how the Supreme Court has changed judicial review of agency actions. Applying what it considered to be the best interpretation of an ambiguous statute, the Court required tougher air pollution controls for the San Joaquin Valley. The dissent argued that the decision would be a disaster in terms of policy. But is that even relevant under the Loper Bright ruling?

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Air quality and wildfire

We may need to burn more to get less smoke

One of the impacts of California’s difficult fire season has been air pollution. Fires produce smoke. Large wildfires produce a lot of smoke. And large wildfires in the southern Sierra Nevada produce smoke in the southern Central Valley – the part of the United States that already has some of the worst air quality in …

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California Headed for Record Drought: Will Critically-Needed Reforms Follow?

Confronting a Looming Environmental Disaster

The Sacramento Bee’s fine environmental reporter, Matt Weiser, yesterday reported on a looming, major drought facing California and its regional neighbors. The figures aren’t pretty.  A persistent high-pressure front stretching over the Gulf of Alaska and most of the Northern Pacific has diverted the normal fall and winter storm track away from California and other …

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Overdrafting California’s Groundwater Resources–A Chronic Condition

A recently issued study by a University of Texas-led group of research scientists confirm a discomforting fact: groundwater resources in California’s Central Valley are being depleted at an alarming rate.  As reported in the Sacramento Bee, the study warns that current groundwater extraction rates from the Central Valley aquifer–which is primarily mined to serve agricultural …

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