"You could sing in the rain, walk in the rain, and then the rain was acid…"
Why reducing acid in rain is just the first step in recovery.
“China’s growth model is based on the idea that natural resources are free."
China's crackdown on criticism of a $6 billion petrochemical plant.
How can the Chinese live with terrible air pollution? One answer: Americans did.
Women often partnered with scientists to make their case for cleaner air.
We imagine what would other cities might look like with Beijing-quality air.
