February reflected the best one month improvement for these metrics in several decades.

FORBES: Economists Aren't As Clever As They Think They Are

Its sin: legally dumping 1.3 million pounds of polychlorinated biphenyls into the Hudson River over several decades, until these chemicals were banned in 1977, then dragging its feet on the cleanup.

FORBES: Magazine Article

These policies also increased Uribe's popularity as Colombians feel safer today than in the past several decades.

CENTERFORSECURITYPOLICY: A blow to anti-drug policy

These emerging partnerships build upon a long history of joint research and management that, in the Arctic, date back several decades to the land claim processes in northern North America in the 1970s and 1980s.

UNESCO: Ecological Sciences for Sustainable Development