Ozone pollution has worsened at some national parks posing health risks to visitors but also leading to improved visibility.
"Ozone is a colorless, odorless pollutant, making it possible for visibility to improve sharply in Yellowstone National Park, for instance, even as ozone levels climb steadily. Brown haze and other visible smog has decreased in many parks because of a 1999 Environmental Protection Agency edict...which has led to stiffer controls on industries that produce visible particulate pollution.
...huge increases in oil and gas drilling in interior western states â€" along with emissions from coal-fired power plants, cars and other sources â€" were causing ozone to drift across some of the nation's most famous parks."
FULL STORY: On a Clear Day, You Can't See the Pollution

Analysis: Cybertruck Fatality Rate Far Exceeds That of Ford Pinto
The Tesla Cybertruck was recalled seven times last year.

National Parks Layoffs Will Cause Communities to Lose Billions
Thousands of essential park workers were laid off this week, just before the busy spring break season.

Retro-silient?: America’s First “Eco-burb,” The Woodlands Turns 50
A master-planned community north of Houston offers lessons on green infrastructure and resilient design, but falls short of its founder’s lofty affordability and walkability goals.

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Analysis: Cybertruck Fatality Rate Far Exceeds That of Ford Pinto
The Tesla Cybertruck was recalled seven times last year.

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This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.
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