Study links Asian carp with Mississippi River fish drop

Sport fish have declined significantly in portions of the Upper Mississippi River infested with Asian carp, adding evidence to fears about the invader's threat to native species, according to a new study.

Delhi suffocates under toxic smog but millions go without masks

A thick grey smog choked New Delhi for the fifth day Saturday, adding to a mounting pollution health crisis, but retired naval commander Anil Charan is one of the vast majority of the city's 20 million inhabitants who do ...