Population

Weighty Issues

Humans cause climate change. Do we just need fewer humans?
can't take the heat

Here’s how hot your city might be by 2100
Living

Does your state suck at reproductive rights? Find out
Living

Wondering which condoms to buy? Science has the answer
Living

Map shows where the biggest couch potatoes live (and it’s NOT the U.S.!)
Population

A male birth control dudes might actually use
Population

Easy, reversible, 100 percent effective birth control is for men only
Cities

C1ty By NuMb3r5: A formula for growing better cities
Climate & Energy

Baby boomers are the worst for the climate