Tim Halbur

Bogotá, Colombia changed public opinion about jaywalking by putting mimes on the street to mock people who crossed illegally. Paul Romer of Stanford looks at other interventions that changed public opinion when laws couldn't.

The oldest city in the Americas bans cars from its colonial streets and outlines a plan to make San Juan more livable. David Soto gives us a look at this ambitious plan.

The world of business is underestimating the catastrophic consequences of declining oil, says a new report from Lloyd's of London/Chatham House.

Hawaii is an ideal test case for creating an electric car infrastructure because fuel costs are very high and distances are manageable. Charging stations are going up all over the islands with a goal of making it easy to envision driving an EV.

The National Trust for Historic Preservation has teamed up with The International Living Building Institute have launched a contest to envision future cities using sustainable practices - a move that the NTHP doesn't find at odds with their mission.