The Camargue region of southern France could end the century underwater as sea-levels rise at an accelerating rate. We meet the custodians of this unique wetland and the scientists using Sentinel satellites to study the effects of climate change globally.
ESA's Aeolus satellite is pioneering a laser technology to measure the wind from space for the very first time. It promises a big boost to weather forecasting, but only once it has proved itself to be accurate. We head to Norway as the science team swings into action.