What happens to Rio’s stadiums after the Olympics end?

Rio has ambitious plans for repurposing its shiny new Olympic infrastructure -- but will they carry through?

algae whiz

The Olympics keeps getting greener — well, the pools do, anyway

Algae is turning Rio's pools a frightening shade of green.

Smashing Records

Here’s a new Olympic sport to consider: Safe sex

The push for protection is partially attributed to anxieties around the Zika virus, which is sexually transmittable.

Hot Bods

Enjoy it while you can: Climate change is already hitting the Olympics hard

In hot, polluted places like Rio, you’re actually better off just having a beer than exercising. Really.

Rio Olympics

Rio Olympics opens with a powerful message about climate change

The opening ceremonies probably did more for climate education than U.S. presidential campaigns ever have.

Game of groans

6 ways the Rio Olympics are failing on sustainability

From waters teeming with pathogens to transportation troubles, the Rio Olympics are looking like a hot mess.

Training Pays Off

Does anything good come out of the Olympics?

The Olympics bring their host cities new stadiums, trains, and glistening abs — but which of those benefit them in the long run?

Climate & Energy

We’re starting to understand just how Zika and climate change go together

Scientists try to narrow in on the way warmer, weirder weather helped the disease spread.

gold medal

Olympians in Rio campaign for climate action

Competitors from vulnerable regions have started a movement.