UN report on Climate change: Regional impact

摘要

THIS is how climate change may affect the world's regions this century, as forecast in a major report published by UN scientists recently. The report is part of the fifth overview on global warming by the Intergovernmental Panel on Climate Change (IPCC) since 1988. The document identifies each region's key challenges; options for addressing them; and level of risk from warming of either 2 C (3.6 F) or 4 C (7.2 F) by 2100 compared to pre-industrial levels. This risk is calculated on the basis of present policies for adapting to climate change.