Coal ash retention ponds are so numerous and so toxic that they are now considered to be a potential threat to national security.
Back in December of 2008, a coal ash pond in Tennessee burst its banks and flooded some 300 acres with an estimated billion gallons of toxic sludge. Now there are concerns that the nation's other 44 such sites also pose a grave threat to surrounding communities.
We all knew the problem was serious. Now it turns out that it's so bad that the public can't be informed where those sites are. According to the Huffington Post,
"the Department of Homeland Security has told Sen. Barbara Boxer (D-Calif.) that her committee can't publicly disclose the location of coal ash dumps across the country.
The pollution is so toxic, so dangerous, that an enemy of the United States -- or a storm or some other disrupting event -- could easily cause them to spill out and lay waste to any area nearby."
FULL STORY: Coal Ash Spills Too Dangerous To Reveal To Public, Says DHS
Poorest NYC Neighborhoods Pay Price for Delivery Boom
The rise of ‘last-mile’ e-commerce warehouses — and their attendant truck traffic and air pollution — is disproportionately impacting the most historically disadvantaged parts of the city.
Study: London ULEZ Rapidly Cleaning up Air Pollution
Expanding the city’s ultra low-emission zone has resulted in dramatic drops in particle emissions in inner and outer London.
Clean Air Zone Nets Health Authority Over £30K per Month
A new study links the zone to a 25 percent drop in GP visits for lung and heart conditions in its first year alone.
Americans May Be Stuck — But Why?
Americans are moving a lot less than they once did, and that is a problem. While Yoni Applebaum, in his highly-publicized article Stuck, gets the reasons badly wrong, it's still important to ask: why are we moving so much less than before?
Using Old Oil and Gas Wells for Green Energy Storage
Penn State researchers have found that repurposing abandoned oil and gas wells for geothermal-assisted compressed-air energy storage can boost efficiency, reduce environmental risks, and support clean energy and job transitions.
Placekeeping: Setting a New Precedent for City Planners
How a preservation-based approach to redevelopment and urban design can prevent displacement and honor legacy communities.
San Francisco’s Muni Ridership Grew in 2024
The system saw its highest ridership since before the Covid-19 pandemic, but faces a severe budget shortage in the coming year.
Colorado Lawmakers Move to Protect BRT Funding
In the face of potential federal funding cuts, CDOT leaders reasserted their commitment to planned bus rapid transit projects.
Safe Streets Funding in Jeopardy
The Trump administration is specifically targeting bike infrastructure and other road safety projects in its funding cuts.
Urban Design for Planners 1: Software Tools
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.
Planning for Universal Design
Learn the tools for implementing Universal Design in planning regulations.
Heyer Gruel & Associates PA
City of Moreno Valley
Institute for Housing and Urban Development Studies (IHS)
City of Grandview
Harvard GSD Executive Education
Salt Lake City
NYU Wagner Graduate School of Public Service
City of Cambridge, Maryland