Subscriber OnlyGreenCoffee Production Faces Climate Risk for Africa’s Top GrowerAnnual yields could fall much as 25% by 2030, McKinsey saysStudy on coffee, wheat, corn, cotton in Ethiopia, MozambiquePhotographer: Daniel Acker/BloombergBySamuel Gebre+FollowMay 18, 2020, 4:00 PM UTCSign up to our Next Africa newsletter and follow Bloomberg Africa on TwitterEthiopia, Africa’s largest coffee grower, could face “significant volatility” in the crop’s yields in a decade due to changing weather patterns, according to McKinsey & Co.