The new app allows Delhites to take photos of people polluting, but it may just hurt the poor.
This might be a problem we can actually fix.
Can China turn its pollution problem into diamonds?
Secret GPS trackers show how sham e-waste recyclers profit by dumping America’s toxic garbage on developing nations.
The dark truth about Brazil's happy mascots.
A new documentary, “Toxic Guanabara,” unravels Brazil’s complicated relationship with its most iconic bay.
It's the first request of its kind. More will come.
Smog is making a comeback.
Residents wonder whether Silicon Valley’s tech giants are paying their fair share to save the local environment.
A new project in Toronto is keeping tabs on the city’s air quality.