1. Independent Group of Scientists appointed by the Secretary-General Global Sustainable Development Report 2019: The Future is Now – Science for Achieving Sustainable Development (United Nations, 2019);
https://go.nature.com/2jScAoW
2. The Sustainable Development Goals Report 2019 (United Nations, 2019).
3. Sachs, J., Schmidt-Traub, G., Kroll, C., Lafortune, G. & Fuller, G. Sustainable Development Report 2019 (Bertelsmann Stiftung and Sustainable Development Solutions Network, 2019).
4. Hirsch Hadorn, G., Bradley, D., Pohl, C., Rist, S. & Wiesmann, U. Ecol. Econ. 60, 119–128 (2006).
5. Schneider, F. et al. Sustain. Sci.
https://doi.org/10.1007/s11625-019-00675-y
(2019).