Climate change - food security
Reds and oranges highlight lands around the Mediterranean that experienced significantly drier winters during 1971-2010 than 1902-2010.
Knowledge Summary Women's and Children's Health
The WHO Partnership for Maternal, Newborn & Child Health June 2012
Today almost half a billion women and children under 5 in the developing world are undernourished.
This number could increase by 20 percent, reaching one in five within a decade, compared to one in seven today, due to the impacts of climate change on global food production, according to a detailed analysis by The Partnership for Maternal, Newborn & Child Health (PMNCH), the World Health Organization (WHO), the UN System Standing Committee on Nutrition (UNSCN),
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Rice production in a changing climate: a meta-analysis of responses to elevated carbon dioxide and elevated ozone concentration.
E Ainsworth 11 MAR 2008.
When compared with rice grown in charcoal-filtered air, rice exposed to 62 ppb O3 showed a 14% decrease in yield. Many determinants of yield, including photosynthesis, biomass, leaf area index, grain number and grain mass, were reduced by elevated O3 (ground level ozone). While there have been too few studies of the interaction of CO2 and O3 for meta-analysis, the interaction of temperature and CO2 has been studied more widely. Elevated temperature treatments negated any enhancement in rice yield at elevated CO2.
Dec 2012 Nature Recent patterns of crop yield growth and stagnation Wash Post
Jan 2013 Potsdam Institute Global warming has increased monthly heat records by a factor of five