Outsider chance: ending Sudan’s proxy war

We examine one of America’s primary races, in which a sharply lefty candidate beat the establishment figure. What does that reveal about changes in the Democratic Party? For decades China’s Yangtze River was a polluted, overfished mess. We look at the wins from cleaning it up—and ...  Show more

Fewer clouds, shrinking ice caps, changing pollutants: all result in less of the sun’s energy being reflected back into space. Which is more bad news for a changing climate. Our correspondent explains why so much more of the world’s cocaine is passing through west Africa. And the ...  Show more