A reader wonders if HOT lanes, open to carpoolers and people with money to burn, are an improvement on standard HOV lanes. Umbra gets him out of his jam.
A newly proposed "pied-à-terre tax" in New York City would apply to luxury homes owned by people who don’t actually live in the city.
Mayors and municipal governments are doing a lot, and can do a lot more, even while national governments are pathetic laggards.
The United Nations doesn't want the world to forget about climate change. And it's making big, flashy statements about it.
What does a "blue city" look like, anyway? For starters, take a look at Rotterdam and Wellington.
The $8 billion complex would send electricity from Wyoming to the city of Los Angeles, making the Hoover Dam look like a middle school science project.
Recent stories use bicycling as either a proxy for white privilege, or a metaphor for explaining it to other white people. It's not working.
Here are five things you should do if you’re ever unlucky enough to be hit. And a shining example of what not to do.
Could improving public health help curb climate change?
We've devised the world's shortest survey to find out what kind of actions our readers are taking. You know you want to.