1 Biological Systems & Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA. cdscown@lbl.gov.
2 Life-Cycle, Economics, and Agronomy Division, Joint BioEnergy Institute, Emeryville, CA, USA. cdscown@lbl.gov.
3 Energy Analysis and Environmental Impacts Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA. cdscown@lbl.gov.
4 Energy & Biosciences Institute, University of California, Berkeley, CA, USA. cdscown@lbl.gov.
5 Biological Systems & Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA. keasling@berkeley.edu.
6 Department of Chemical and Biomolecular Engineering, University of California, Berkeley, CA, USA. keasling@berkeley.edu.
7 The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Kgs, Lyngby, Denmark. keasling@berkeley.edu.
8 Center for Synthetic Biochemistry, Institute for Synthetic Biology, Shenzhen Institutes for Advanced Technologies, Shenzhen, China. keasling@berkeley.edu.
9 Biofuels and Bioproducts Division, Joint BioEnergy Institute, Emeryville, CA, USA. keasling@berkeley.edu.