Afghanistan-Iran Border Conflict Highlights Water Scarcity Crisis.

Afghanistan and Iran are clashing over control of the dwindling water supply from the Helmand river, with Iran accusing the Taliban government of deliberately depriving it of water. The situation risks destabilizing an already poor and water-deprived part of Iran, where serious protests against the government have taken place in recent years. The 580-mile border between Afghanistan and Iran is porous and crawling with crime, predominantly coming from the Afghan side into Iran. Water tensions between the two countries go way back, and climate change and overfarming are making the situation worse.