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."
Read the full story: On a Clear Day, You Can't See the Pollution
Planetizen Federal Action Tracker
A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.
Colorado’s Largest Data Center Could Rise Next to Homes — Without a Public Hearing
The proposed campus would consume 11 times the power of Denver International Airport; as it has across the country, opposition mounts.
US to reduce Colorado River water deliveries to Mexico
A new Colorado Treaty amendment reduces Mexico’s Colorado River water allocation by 250,000 acre feet.
Judges permit Denver to divert 77,000 acre feet from the Colorado River for reservoir expansion
Overuse and climate change have caused the Colorado River’s water levels to plummet.
Amtrak, CN end decades-long dispute with eight-year agreement
The new operating agreement establishes an updated framework for the companies to work together, including processes to resolve disputes.
Raised interest rates may kill financially vulnerable construction projects
The chief economist at ConstructConnect warns that if construction project owners are negatively impacted by the raised rates, it could result in delayed payments to contractors.
FREE Course: Walkable City 1: Why Walkability?
After describing his path towards focusing on walkability as the essence of good planning, Jeff Speck marches through his five principal reasons for making more walkable places.
Reinventing Malls: Planning Alchemy—Turning Gray Fields Into Gold
The course focuses on the opportunities and imperatives that shape reinvention of mall sites.
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