How an inspiring group of women built one of the greenest buildings in Portland

This African-American sorority turned an old gas station into a sleek eco-paradise.


San Francisco dreams up mean way to crack down on public urinators

Many cities have a pissing problem. Here's what some are doing about it.


How suburban sprawl causes segregation and isolates the poor

When well-off white people flee to the suburbs, it's bad for those left behind in inner cities and bad for the environment too.


Is Uber bad for the environment in NYC?

In a dense city that already has lots of transportation options, are Uber cars just adding to pollution and congestion?

Give 'em enough sensors

This could be a huge move for air-pollution monitoring

A new company collaborates with Google to try to deliver air quality data at a new level of pinpoint detail.


Murals in Harlem show birds like you’ve never seen them before

Birds that are threatened by climate change are now showing up in new locations -- on rolldown gates, apartment building walls, and stoops.


This video of Earth and the stuff we put on it is mesmerizing

Grab your headphones and give it a watch.


Couple turns lawn into ecosystem; officials threaten to mow it down

A couple in Ohio decided to let their yard grow wild, but their township wasn't having it.


The Senate passed a surprisingly good transportation bill

But now for the House ...