Paul A. Samuelson, the first American Nobel laureate in economics and the foremost academic economist of the 20th century, died Sunday at his home in Belmont, Mass. He was 94. His death was announced by the Massachusetts Institute of Technology, which Samuelson helped build into one of the world’s great centres of graduate education in economics. In receiving the Nobel Prize in 1970, Samuelson was credited with transforming his discipline...

Paul A. Samuelson, the first American Nobel laureate in economics and the foremost academic economist of the 20th century, died Sunday at his home in Belmont, Mass. He was 94. His death was announced by the Massachusetts Institute of Technology, which Samuelson helped build into one of the world’s great centres of graduate education in economics. In receiving the Nobel Prize in 1970, Samuelson was credited with transforming his discipline from...

Today 56 newspapers in 45 countries take the unprecedented step of speaking with one voice through a common editorial. We do so because humanity faces a profound emergency. Unless we combine to take decisive action, climate change will ravage our planet, and with it our prosperity and security. The dangers have been becoming apparent for a generation. Now the facts have started to speak: 11 of the past 14 years...

CITIES MAKE one simple promise to newcomers: Sacrifice yourself to me and your children shall prosper. This promise drew Ahmed Raza, a small-time wrestler from an Uttar Pradesh village and millions like him to the capital of newly-independent India. Raza kept his part of the bargain, yet half a century later, his daughter was pushed out of the city her father helped build, the only home she has known. “I...

Twenty-five years ago this week, a gas leak at a Union Carbide chemicals plant in Bhopal released 40 tonnes of poisonous gases over the Indian city, killing thousands and injuring tens of thousands. To this day, many of the survivors live in crowded shacks in the slums that line the old factory walls. The people here are not the only ones who have been affected, however. The leak, which is often...