Iraqis including President Barham Salih have this week mourned the loss of a lake in southern Iraq, which officials and activists say has completely dried up due to climate change and overuse. Lake Sawa in Muthanna province was once a popular tourist destination and haven for biodiversity, but shrinking rainfall and increased draining by landowners and farmers for agricultural use saw the lake shrivel in size in recent years. “In previous years, the water area decreased during the dry season… but this year, for the first time, the lake has completely disappeared,” Iraqi environmental activis…