 You can hardly go by a day without using a plastic product. The problem is that only a small percentage is really recycled and reused. This exponential growth and accumulation is very bad for the environment, especially the waste in the oceans. We'll have more plastic waste than fish by 2050. So once the waste gets into oceans, it's irreversible, because the cost of cleaning the ocean is enormous. It's called hydrothermal liquefaction. The polymers will sort of melt in the high temperature and dissolve in the supercritical water. And then in this state, they can convert into oil or monomers or gas. It's a very versatile, powerful technique. If we can convert this into valuable use for products, that will create a driving force to reduce the plastic waste accumulation and also reduce associated risk to the environment.