So you think cars are to blame for L.A.'s air pollution problems? That might be bull excrement, literally, reports David Biello.
A new study in the journal Geophysical Research Letters pins the blame for L.A.'s foul air on our four-stomached friends.
"You might not think of Los Angeles as a cow town. But there are nearly 300,000 cattle in the region, according to the U.S. Department of Agriculture. And now flights to measure local air pollution have revealed that the cows may be a bigger factor in dangerous air pollution than the cars are," writes Biello.
"The good news: it's a lot easier to control emissions from a few big dairy farms than 10 million vehicles. So an effort to reduce the pollution from cows and their bacteria could have a bigger impact on Los Angelenos air than further emission cuts from cars."
FULL STORY: L.A. Needs to Stop Being Such a Cow Town

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For decades we have blamed 100-year-old maps for the patterns of spatial racial inequity that persist in American cities today. An esteemed researcher says: we’ve got it all wrong.

Planetizen Federal Action Tracker
A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

Walmart Announces Nationwide EV Charging Network
The company plans to install electric car chargers at most of its stores by 2030.

EPA Awards $267 Million to Clean Up and Reuse Contaminated Sites
The EPA is investing the funds to clean up and redevelop contaminated sites nationwide, supporting economic growth, community revitalization, and environmental restoration.

Knoxville Dedicates $1M to New Greenway
The proposed greenway would run along North Broadway and connect to 125 miles of existing trails.

Philadelphia Launches ‘Speed Slots’ Traffic Calming Pilot
The project focuses on a 1.4-mile stretch of Lincoln Drive where cars frequently drive above the posted speed limit.
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