Every year, rice farming (specifically, rice milling) generates about 100 million tons of waste. The inedible protective covering of the actual rice grains, known as hulls or husks, can be used in a variety of ways, such as making cement, but there’s a lot more demand for rice than there is for rice husks.

Scientists in Japan are taking

Source: Hot Hardware – Researchers Develop Method To Make Quantum Dot LEDs From Recycled Rice Husks