Nearly one-fifth of world cultural heritage sites would be affected by global warming of a further 3C, scientists warn
Imperial College says Britain could get as much as 40% of its electricity from solar power on sunny days by decade's end
Global greenhouse gas emissions are set to rise by nearly a third in the next two decades, putting hopes of curtailing dangerous climate change beyond reach, a new report by BP has found.
The chancellor dashed hopes in the renewable energy industry that it might figure in his talk of more public expenditure on big infrastructure projects.
Barack Obama has launched a new digital campaign that aims to harness the massive database of supporters' emails he amassed over two presidential elections and use it to propel the ambitious agenda for his second term in office.
Deirdre Bolton reports Wednesday's top headlines. She speaks on Bloomberg Television's Money Moves.
Brazilian negotiators have been accused of using strong-arm tactics at Rio+20 to secure a deal before heads of state start arriving for the Earth Summit later this week.