Most of Abdi Ahmed Farah’s hundreds of goats have died. It has not rained steadily in this part of Somalia for three years, something the 70-year-old never thought possible. He is in debt from buying water. The reservoir outside his tent is nearly empty. His family is down to one meal a day: rice with sugar and oil. The youngest of his 22 children was born three weeks ago and his wife produces only occasional drops of breast milk. “I have considered abandoning my family because I cannot provide for them,” said Farah, sitting in front of dwindling food supplies, as if on guard. Yet another drought is affecting millions of people across Somalia, one of the world's most vulnerable countries to climate shocks. Some rivers are dry. Crops have withered. Experts say the drought could be among the worst in Somali history. The crisis is compounded by aid cuts, most dramatically by the Trump administration, and rising prices from the Iran war.…