flooding

Deforestation and flooding in Bangladesh, the collapse of Black Sea fisheries, the desertification of sub-Saharan Africa and “a nearly endless list” of other issues, he said, would drive human migration.

For the purposes of the project, the best photos are taken in areas susceptible to flooding and erosion, and where water levels can be gauged against identifiable landmarks such as cliffs, rocks, roads, buildings, bridge supports, sea walls, staircases and piers.

Thousands of people have been evacuated from their homes in the Costa del Sol region of southern Spain after a red weather alert was issued for extreme rain and flooding.

There were 222 confirmed deaths from the flooding in Spain last month, and 23 people are still missing.

A former oil engineer, David Bojo Leju, has told the BBC that flooding in the area is washing pollution into water sources.