Three things to know about the disastrous flood in India

A collapsing glacier or a landslide might be at fault, with climate change playing a role

Flood in Chamoli District, India

At least 30 people were killed and the Tapovan Hydropower Plant (shown) was swept away when a massive flood of water, mud and debris flowed into northern India’s Chamoli District, part of the Himalayan state of Uttarakhand, on February 7. The flood may have been caused by a landslide or by an overflowing glacial lake.

Rishabh R. Jain/ AP Photo

A flash flood surged down a river in India’s Himalayan Uttarakhand state on February 7, killing at least 30 people and washing away two hydroelectric power stations.