Guardian: Hundreds of thousands of people are expected to take to the streets of New York, London and eight other cities worldwide in a fortnight to pressure world leaders to take action on global warming, in what organisers claim will be the biggest climate march in history.
On 23 September, heads of state will join a New York summit on climate change organised by Ban Ki-moon, the first time world leaders have come together on the issue since the landmark Copenhagen summit in 2009, which was seen as a...