As Bangladesh recovers from another cyclone, an internal migration crisis is deepening in this country, one of the most vulnerable in the world to the effects of climate change.

At the start of May, Cyclone Fani hit eastern India, killing 42 people, before moving into Bangladesh. Some 17 people were killed here – a relatively low number compared to previous cyclones.

This is thanks to a mixture of luck – the cyclone lost strength as it travelled north-eastwards into Bangladesh – and Bangladesh’s preparedness, says Dr Saleemul Huq, director of the International Centre for Climate Change and Development.

“We’re very good at saving lives, better than anywhere else I would say,” he explains. “But what we can’t stop is damage – that’s unavoidable. And the impact, in terms of lost livelihoods and internal displacement, is huge.”

Across the country 13,000 houses were destroyed. In Chandpur, central Bangladesh, for example, at least 100 people were left without shelter.