So look at that image then read this article

"Waste from Adidas, Walmart, other brands fuelling Cambodia brick kilns"

"Waste from at least 19 international brands including Adidas and Walmart is being used to fuel kilns in brick factories in Cambodia, and some workers were falling ill, according to a report by a local rights group released on Monday."

... "It found pre-consumer garment waste including fabric, plastic, rubber, and other materials from the brands was being burned at seven factories. The factories were burning garment waste to save on fuel costs, it said."