Food security, economy to be hit by climate change, leaked IPCC draft report shows
Global warming will displace millions of people, trigger falling crop yields, stoke conflict and cost trillions of dollars in lost economic output, a United Nations report will warn.
A draft of the report to be finalised later this month by the Intergovernmental Panel on Climate Change (IPCC) and obtained by The Independent in Britain, says “hundreds of millions of people” will be forced to move because of coastal flooding and land loss as sea levels rise.
Food security will increasingly be threatened, with median crop yields to drop by as much as 2 per cent per decade for the rest of the century. Demand, though, is on course to rise 14 per cent per decade until 2050, the Independent cited the IPCC draft as saying.
Poverty and economic shocks from climate change will have a significant impact on migration, increasing the risks of violence from protests and from civil or international conflicts, according the draft version of the report on Impacts, Adaptation and Vulnerability states.
Among the projections likely to attract scrutiny from reviewers when the final report of the IPCC’s Working Group II is settled on in Japan later this month is the draft’s estimate that annual global gross domestic product will drop by 0.2-2 per cent if temperatures rise 2.5 degrees above pre-industrial levels.
Global mean temperatures have already risen about 0.9 degrees, with at least a 2-degree rise increasingly likely as carbon dioxide emissions from the burning of fossil fuels and land clearing continue to rise, scientists say.