From a remote corner of northeastern Myanmar, an insurgent army sells tin ore to suppliers of some of the world's largest consumer companies. More than 500 companies, including leading brands such as smartphone maker Apple, coffee giant Starbucks and luxury jeweler Tiffany & Co, list among their suppliers Chinese-controlled firms that indirectly buy ore from the Man Maw mine near Myanmar's border with China, a Reuters examination of the supply chain found.

Deep in the jungles of Colombia, thousands of small, illegal mining operations, many under the control of Marxist guerrillas or drug traffickers, are working long hours to pull gold out of the ground. Miners are digging in out-of-the-way places such as Timbiquí and Río Quito. From there, the gold is hauled by boat, truck or small airplanes to smelters in Cali and Medellin.

Global efforts to cut greenhouse gas emissions will continue after the election of climate change skeptic Donald Trump to the U.S. presidency, and momentum is growing to cut ship pollution, the United Nations' shipping agency chief says.