Brian Fragan-- Not the first society to face climate change

Brian Fagan,British acheologist and author, talks about other societies which have faced climate change.

The big danger is drought.

Humans are remarkably adoptable, and what keeps us together are the social ties of family and friends. Urbanism, unfortunately, destroys these.

Decisive local leadership can save people in a crisis, but we here talk about LOCAL leaders with kinship ties to the community and who understand the community dynamics.

Invention of agriculture: people living on the edge of vast oak forests, who could make an easy living off of the forest fruits (nuts, game, etc). Forest start to dry up, they switch to grass. They already have the habit of stable homes/fixed dwellings.

Great speaker, many stories

isohyet -- rainfall and survival and good news

Isohyet- line on a map indicating rainfall patterns.

Below the 100-400mm isohyet land becomes uninhabitable.

11 african countries sign the great green wall initiative, a 15km wide 7000 km long green belt to stop the desert.