CGS NS 202 Chapter Notes: Reading - climates change impacts on Global Food seucurity
13 Feb 2019
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Document Summary
Definition of food security by food and agricultural organization. The availability of sufficient food with appropriate quality. Access by individuals to adequate resources for acquiring food. 2 billion of 7 billion population do not meet the standards defined by fao. They only cover calorie shortages, not nutritional facts. Their measures are also outdated: the most recent is 2010-2012. They are derived from aggregate data, not from household, or individual level deficiencies. The earth has warmed up since the middle of 19th century. Emission of greenhouse gas, co2 and methane. Evident link between global warming and burning of fossil. Warming will not be even over the globe. In - land areas are more likely to be warmer compared to oceans, poles, or arid regions. Global mean temperature would rise 1. 5~4 celsius. Land surface temperature can rise more slowly than expected because of the high co2 level absorbed by oceans.
