Half surface water in some countries has been lost since 1980s

More of Earth's surface is covered by liquid water now than three decades ago. But some countries in Central Asia and the Middle East have lost more than half their surface water, satellite images show. There have also been losses in the US and Australia. The changes are mainly a result of activities such as irrigation and dam building, but climate change is playing a part too. Previous studies of surface water have largely relied on how much water countries estimate they have..