In recent years, Taiwan has been experiencing a new kind of boom. Specifically, the number of recycling firms in Taiwan has grown from about 100 in the 1980s and 1990s to more than 1,600 at present, and these firms are busy turning heaps of waste into billions of dollars. According to Taiwan's Industrial Development Bureau of the Ministry of Economic Affairs, recyclers earned US$2.2 billion in revenue in 2014, up from US$1 billion a decade ago. In addition, almost every elementary school in Taiwan has now implemented environmental education programs into their curriculums. The result? Most Taiwanese youngsters are now able to tell their parents that 5 PET bottles can make a recycled bag; that 3 PS lunch boxes can be the raw material for a ruler; or even that 1 kilogram of gold can be recycled from 80,000 used computers.