Environmental Protection Agency

Reuters

After 50 Years, Boston's Charles River Just Became Swimmable Again

It took $500 million and nearly two decades of work. Here's how the city did it.

Shutterstock

Why Sewage Plants Are Especially Vulnerable to Climate Change

Nearly 11 billion gallons of waste spilled into waterways after Superstorm Sandy, according to a new report.

Shutterstock

How the Feds Are Building More Sustainable Cities

Already, the Partnership for Sustainable Communities has given $3.5 billion to more than 700 municipalities.

Nest

Engineering the iPod of Thermostats

Former Apple designers tackle one of the most frustrating household gadgets of all