Green agenda for global leaders

Climate change, the rise of Asia and the next web revolution will dominate the agenda when the World Economic Forum starts on Wednesday in Davos.
The five-day talking shop in the Swiss Alps brings together business leaders, politicians and campaigners, among them Bill Gates, Tony Blair and Bono.
More than 30 trade ministers will meet on the sidelines in the hope of reviving stalled global trade talks.
Davos attracts 2,400 participants from 90 countries.
They will discuss the geopolitical changes that have resulted in an "increasingly schizophrenic world" that is "harder and harder to understand", said the forum's founder Professor Klaus Schwab.
Participants can expect a daily reminder of what global warming could mean: usually the Davos valley is buried under a metre or two of snow at this time of year, but until Tuesday the mild winter left the hills mostly green.
Overnight there has been some snow, but it compares poorly to the huge amount of snow that participants have come to expect.