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How California’s war on smog and its ambitious car pollution rules made everyone’s air cleaner
California’s stricter auto emissions standards led to catalytic converters becoming standard and removed 8 billion tons of pollution, improving U.S. air quality and public health.
- California has long utilized federal Clean Air Act authority to set emissions standards for cars and trucks that exceed national requirements, though the Trump administration now seeks to revoke these established waivers.
- Signed by President Richard Nixon, the 1970 Clean Air Act mandated that automakers cut pollutants by 90% by 1975, despite industry warnings that the necessary emission-reduction technology was not ready for mass production.
- Eugene Houdry invented catalytic converter technology in the 1950s, which later enabled the elimination of leaded gasoline; these devices have removed 8 billion tons of pollution from the atmosphere across the United States.
- In 1973, EPA Administrator William Ruckelshaus granted California a crucial waiver to enforce stricter standards, compelling automakers to install catalytic converters despite federal appeals court delays that initially pushed back compliance deadlines.
- Modern vehicle emissions are 99% cleaner than in 1970, with catalytic technology now standard globally, yet the Trump administration has overturned three state waivers, illustrating ongoing tension between federal policy and California's environmental leadership.
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11 Articles
11 Articles
The Laconia Daily Sun+9 Reposted by 9 other sources
How California’s war on smog and its ambitious car pollution rules made everyone’s air cleaner
The Clean Air Act gave California the authority to issue tough pollution standards for vehicles, with EPA approval. The Trump administration is now trying to stop it.
Coverage Details
Total News Sources11
Leaning Left3Leaning Right3Center3Last UpdatedBias Distribution34% Left, 33% Center, 33% Right
Bias Distribution
- 34% of the sources lean Left, 33% of the sources are Center, 33% of the sources lean Right
34% Left
L 34%
C 33%
R 33%
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