Extreme weather events causing displacement, complex emergencies, w important consequences for health. Result of production of co2 from burning fossil fuels for residential purposes to power industry and cars. Pollutants impact blanket of greenhouse gases surrounding earth, re ecting suns radiant energy back on to the earth causing a warming trend. Impact is global: adverse crops and wildlife, ooding coasts, rising water sea levels, severe weather and droughts. Greatetst burden of associatied morbility and morality is most vulnerable. Linked to food insecurity, water scarcity, etc. Impacts social and environ. determinants of health - clean air, safe water . Majro killers (malnutrition,etc) are ^ climate sensitive (getting worse) Bad helath care are less able to cope. Action areas - reduce green house, etc. Exists when all people at all time shave access to suf cient, safe, nutritious food to maintain a healthy and active life. Includes physical and economic access to quality foods that meet poepel"s dietary needs, and food prefernces.