Will Paris climate deal protect poor farmers?

Purity Gachanga is one small-scale farmer who is beating climate change. On several acres of land in Embu North in central Kenya, she keeps cows and goats that produce milk, grows trees for fodder, and collects water to irrigate her food crops from a pond filled with tilapia.

Since she started out in the 1970s, she has overcome increasingly erratic rainfall by using new technologies and trying out different crops and trees.