Globe and Mail: For Debra Davidson, the most immediate impact of global climate change has been on her sleep cycle this week.
Dr. Davidson, a sociologist at the University of Alberta, is one of about 50 researchers participating in a series of marathon sessions to hammer out the final wording of a UN document on the effects of climate change.
"It's our last official day and we still have a lot to cover, so I fear tonight will be an all-nighter,"¯ Dr. Davidson said, speaking early Saturday morning from Yokohama,...