1 Potsdam Institute for Climate Impact Research, Member of the Leibniz Association, Telegrafenberg, 14473, Potsdam, Germany. johan.rockstrom@pik-potsdam.de.
2 Institute for Environmental Science and Geography, University of Potsdam, Campus Golm, Karl-Liebknecht-Str. 24-25, 14476, Potsdam, Germany. johan.rockstrom@pik-potsdam.de.
3 Stockholm Resilience Centre, Stockholm University, Frescativägen 8, 106 91, Stockholm, Sweden. johan.rockstrom@pik-potsdam.de.
4 Stockholm Resilience Centre, Stockholm University, Frescativägen 8, 106 91, Stockholm, Sweden.
5 Beijer Institute of Ecological Economics, Swedish Royal Academy of Sciences, Lilla Frescativägen 4, 114 18, Stockholm, Sweden.
6 Potsdam Institute for Climate Impact Research, Member of the Leibniz Association, Telegrafenberg, 14473, Potsdam, Germany.