"More than two million people living on the banks of Lake Kivu in central Africa are at risk of being asphyxiated by gases building up beneath its surface, scientists have warned."

Discarded electronic devices from the U.S. and other affluent countries go to poor nations for "recycling." In Ghana and elsewhere, 11-year-olds may breathe smoke from burning plastic and smash hard drives with rocks to get at the metals they contain.

"Royal Dutch Shell has agreed a $15.5 million out-of-court settlement in a case accusing it of complicity in human rights abuses in Nigeria."