23 Jun 2014:
Popular three-time senator struggling in the polls as Republicans try to cast November election as referendum on Democrats in Washington. Paul Lewis reports
8 May 2014: Suzanne Goldenberg: Climate change affects minorities and women, the elderly and the poor. But the leadership of the environmental movement is pale and male. That doesn't look like progress
6 May 2014: Michael Mann: A vote in the Senate should be the beginning of the end for this dangerous, climate change-generating project. Even conservative estimates don't add up
10 Apr 2014: Desmond Tutu: We must stop climate change. And we can, if we use the tactics that worked in South Africa against the worst carbon emitters
11 Mar 2014:
Thirty senators wrapped up nearly 15 hours of speeches on climate change in a very public embrace of a cause many once fled as political poison
We look back at Apple's tech products, including game-changers such as the iMac and iPhone, curiosities like Lisa – and duds, like the 20th Anniversary Macintosh