Environment

A fungal disease called white-nose syndrome has killed millions of North American cave-dwelling bats over the past decade. Now, scientists are field testing some promising treatments.

General Electric spent six years and hundreds of millions of dollars trying to dredge toxic PCBs from New York's Hudson River. But now it's not clear whether this massive cleanup actually worked.

Alex Weber discovered more than 50,000 balls in the ocean near coastal California golf courses. When golf balls degrade, as these were doing, they release plastic particles and toxic chemicals.

On Jan. 17, 1994, a 6.7 magnitude quake rocked the suburbs north of Los Angeles, leaving 57 dead and causing more than $43 billion in damage. Officials worry LA isn't ready for the next big quake.

A federal grant for basic infrastructure projects is stalled. There is concern that, if fire survivors don't see evidence that recovery has begun, they could give up hope and leave the region.

A young island man came to Manila for college and found a morass of plastic waste. Now he's found ways for Manila's poorest people to dig out, and shown how multinational companies create the problem.