"Scientists meet on Monday to prepare the strongest warning yet that climate change is man-made and will cause more heatwaves, droughts and floods this century unless governments take action."
"Officials from up to 195 governments and scientists will meet in Stockholm from September 23-26 to edit a 31-page draft that also tries to explain why the pace of warming has slowed this century despite rising human emissions of greenhouse gases.
The Intergovernmental Panel on Climate Change (IPCC) will present an edited, summary report on Friday as a main guide for governments, which have agreed to work out a United Nations deal by the end of 2015 to avert the worst impacts.
IPCC drafts seen by Reuters say that human activities, primarily the burning of fossil fuels, are "extremely likely" - at least a 95 percent probability - to be the main cause of warming since the 1950s. The likelihood is up from 90 percent in the last report in 2007 and 66 percent in 2001."