"The report attempts to project how the effects will alter human society in coming decades. While the impact of global warming may actually be outweighed by factors like economic or technological change, the report found, the disruptions are nonetheless likely to be profound.
It cited the risk of death or injury on a widespread scale, probable damage to public health, displacement of people and potential mass migrations.
“Throughout the 21st century, climate-change impacts are projected to slow down economic growth, make poverty reduction more difficult, further erode food security, and prolong existing and create new poverty traps, the latter particularly in urban areas and emerging hotspots of hunger,” the report declared."
http://www.nytimes.com/2014/04/01/science/earth/climate.html?hp
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