Climate Change and Food Security

The 11,000 year period of relative climate stability in which agriculture developed is over.
​Lester Brown

         LAND                                                                                           FOOD & PRICES                                                  PEOPLE                          
Mapping hotspots of climate change and food insecurity in the global tropics (& Africa)
Research Program on Climate Change, Agriculture and Food Security (CCAFS
Land degradation
World  Crop yields 2022 update  Our World in Data   
Developing countries are home to roughly 80 percent of the world’s population, 98 percent of humanity’s hungry people, and 78 percent of harvested croplands. 
​Africa holds 65 per cent of the world’s arable land.   (Where does the world’s food grow? Mar 2016)
Land is a finite resource: Global arable lands = 1/32 of the planet
• 52% of agricultural land affected by degradation
• Land sector emissions: 6.2 Billion tonnes (6.2Gt) of CO2-e per year
• 1.8 billion of world population in 2025 will be living with absolute water scarcity
and 2/3 (or 5.3 billion) could live under water-stress conditions
• Land degradation over the next 25 years may reduce global food production by
up to 12%, and lead to an increase of, as much as, 30% of world food prices
• World Drylands = 40% land mass; 1/3 population; 44% food production system
• 925 million people going hungry (80%: small-holder farmers & landless poor in
rural areas
• 40% interstate conflicts associated with land and natural resources: in 2008 in
more than 30 countries
• Some 135 million people may be displaced by 2045 as a result of desertification


Global livestock presented
​in world maps

​FAO Livestock Systems
e.g Cattle
FAO 2015 Status of the World's Soil Resources