South Sudan is on the frontline of climate change. Extreme flooding has affected hundreds of thousands. Bentiu camp for displaced people is home to 140,000 people and has been surrounded by water for close to five years. Some of its residents have fled fighting, others escaped here after unprecedented floods began in 2019. At the worst point, two thirds of the state was under water. People are forced to forage for food like water lily roots to supplement UN rations. And the BBC has also been shown evidence that the floodwater may harbour another threat to the region's vulnerable inhabitants - pollution from the country's oil industry.

After drought and conflict left more than a million people without access to water in north east Syria, this film follows the engineers and tanker drivers trying to get water to those needing it most.