Starting two weeks after his last day as president, Bill began giving paid speeches — a career that has generated extraordinary wealth.
Artic ice extent has been in decline every year since scientists started recording it in 1979.
Carbon emissions produced by fossil fuel combustion are concentrated in areas of high population density, mainly in the northern hemisphere.
Checking data on 250 cities, we map where Punxsutawney Phil got it right, and where he got it wrong.
Let’s get this straight: a groundhog cannot predict weather patterns.
Studying our presidents’ choice of words over time, provides glimpses of change in American politics.
More than 50 years after the U.S.-imposed embargo, President Obama has announced an effort to normalize ties with Cuba.
The Senate Intelligence Committee’s report on the CIA’s interrogation program listed, for the first time, the names of the 119 detainees who went through the agency’s secret prison system.
Secret-money groups had a major presence in the 2014 midterm election.