Journalist Alok Jha argues that if humans are to survive and thrive for the rest of the 21st Century we must urgently transform our relationship with water.

Many of the serious geopolitical tensions over water as a resource that we looked at in the previous episode of this series are rooted in worsening ecological crises. In this episode, Alok shows how the global water crisis is inextricably linked to the climate crisis – and how neither can be dealt with alone.

In Bangalore, we hear how incredible pollution levels led to a lake catching fire, before revealing how local water management decisions play into the global groundwater emergency. Then former Nasa scientist Jay Famiglietti provides a satellite perspective on the problem, showing how water disasters are both a result of the climate crisis and help fuel it.

Back on earth, we hear what this means for Hindou Ibrahim’s pastoralist cattle herder community living on the edge of the rapidly shrinking Lake Chad, and Alok puts water lobbyist Maggie White on the spot to ask why water is not the urgent global priority it should be for leading politicians and policymakers.

(Photo: Aerial photo of the Lake Chad, in the Bol region, 200km from Chad capital city N'Djamena. Credit: Sia Kambou/AFP/Getty Images)