I’m proud any time that I see a toxic chemical process, something that produces toxic waste or requires precious metals, which have to be mined at terrible environmental degradation costs — I’m proud when I see that replaced with a clean, efficient biological process that doesn’t produce those things. And we have to do that a million times over in order to move away from our addiction to this old-fashioned chemistry that we do.
Recorded Academy of Achievement interview, Pasadena, California, 18 January 2019 source ↗