A new study finds that melting permafrost in Siberia could make global warming significantly worse by releasing up to 500 billion tons of Carbon Dioxide into the atmosphere, almost as much as the 700 billion tons currently in the atmosphere.
"Global warming might be significantly worse than expected during the next century because the melting of carbon-rich permafrost in Siberia could expel hundreds of billions of tons of extra greenhouse gases into the atmosphere, scientists warn in a new study."
"Experts said they can't be certain how large the impact might be, because they can't accurately estimate how much of the extra greenhouse gases will be absorbed by plants and the oceans."
"The melting of Siberian permafrost that has been frozen for thousands of years could eject about 500 billion tons of carbon dioxide into the atmosphere during the next century, scientists from Russia, Alaska and Florida report in today's issue of Science. By comparison, at present the atmosphere contains about 700 billion tons of greenhouse gases."
FULL STORY: Permafrost melt could speed up global warming

Rethinking Redlining
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.

Montreal Mall to Become 6,000 Housing Units
Place Versailles will be transformed into a mixed-use complex over the next 25 years.

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

Santa Clara County Dedicates Over $28M to Affordable Housing
The county is funding over 600 new affordable housing units via revenue from a 2016 bond measure.

Why a Failed ‘Smart City’ Is Still Relevant
A Google-backed proposal to turn an underused section of Toronto waterfront into a tech hub holds relevant lessons about privacy and data.

When Sears Pioneered Modular Housing
Kit homes sold in catalogs like Sears and Montgomery Ward made homeownership affordable for midcentury Americans.
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.
City of Camden Redevelopment Agency
City of Astoria
Transportation Research & Education Center (TREC) at Portland State University
Regional Transportation Commission of Southern Nevada
Toledo-Lucas County Plan Commissions