And the Last Week Tonight host has a good solution: raising gas taxes.
Why sit in traffic all by yourself when you can do it with 30 or 40 of your closest friends?
Every once in a while, Mother Nature throws a curve ball.
This is your brain. This is your brain wired up with electrodes and forced to pedal through New York's terrifying concrete jungle.
A zippy new infographic shows how our winters are warming. Type in your city and find out whose secondhand seasons you'll have by 2100.
First the good news: Seas didn't rise as much as we thought in the 20th century. Bad news? They're rising even faster now.
Our streets weren't designed to accommodate bikes and cars together, but with work, we can get there.
Cities may hold the solutions to our global climate crisis -- but only if we address deep-seated inequities.
In the 1950s, developers pitched Cedar Island, Va., as the next great East Coast beach resort. That dream is now completely gone.
We've devised the world's shortest survey to find out what kind of actions our readers are taking. You know you want to.