The White Nile in South Sudan. Photo by Steve Utterwulghe. As I was landing in Juba, the bustling capital of South Sudan, I couldn’t help but reminisce about my days working in Khartoum for the UN…

Steve Utterwulghe, Patrick Banya |

It was recorded by the Spanish conquistadors, and triggered famines that have been linked to China’s 1901 Boxer Rebellion and even the French revolution. Named by Peruvian fishermen because of its…

Francis Ghesquiere, Nicholas Jones |