Drought wipes out livestock and causes hunger crisis in Kenya

The Turkana people of northwest Kenya know all about loss and damage caused by global warming.

The land where they live a semi-nomadic life herding livestock is in the grip of the worst drought in decades.

90% of water sources are running low or dry, leading to the death of  more than a million of their animals, and as filmmaker Joe Preston recorded the drought has triggered violent clashes between communities competing for scarce food.