What happens when you run out of water?

The World Health Organisation predicts that by 2025 half of the world’s population will live in water-stressed areas. This means the demand for water will be more than the supply. This is already happening in Chennai. The Indian city with more than five million people has been having a water crisis since June. The taps have run dry and experts say there’s no end in sight.

Rajini Vaidyanathan has been reporting from Chennai for the BBC. She tells us what it’s like for the residents to live without water. Meera Subramanian is a journalist and author who has written about India’s climate crisis in her book, ‘A River Runs Again.’ She explains that living during a water shortage is far more common than we think.