Tessa Fox

Until a few years ago, farming in southern Iraq was "as lucrative as oil", Qasim Abdul Wahad remembers, and his one-hectare farm plot in the governate of Basra produced enough to feed his family of eight.

Now dust kicks up under his feet as he walks through his land, after worsening extreme heat and drought linked to climate change killed 90% of his winter crops, including all of his okra and eggplant.