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

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

Canada vs. Kamala: Whose Liberal Housing Platform Comes Out on Top?
As Canada votes for a new Prime Minister, what can America learn from the leading liberal candidate of its neighbor to the north?

The Five Most-Changed American Cities
A ranking of population change, home values, and jobs highlights the nation’s most dynamic and most stagnant regions.

San Diego Adopts First Mobility Master Plan
The plan provides a comprehensive framework for making San Diego’s transportation network more multimodal, accessible, and sustainable.

Housing, Supportive Service Providers Brace for Federal Cuts
Organizations that provide housing assistance are tightening their purse strings and making plans for maintaining operations if federal funding dries up.

Op-Ed: Why an Effective Passenger Rail Network Needs Government Involvement
An outdated rail network that privileges freight won’t be fixed by privatizing Amtrak.
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.
New York City School Construction Authority
Village of Glen Ellyn
Central Transportation Planning Staff/Boston Region MPO
Institute for Housing and Urban Development Studies (IHS)
City of Grandview
Harvard GSD Executive Education
Regional Transportation Commission of Southern Nevada
Toledo-Lucas County Plan Commissions