Steffen,
W.
Potsdam Institute for Climate Impact Research and Cooperation Partners;
Tyson,
P.
Potsdam Institute for Climate Impact Research and Cooperation Partners;
et al. (including Schellnhuber,
H.-J.)
Potsdam Institute for Climate Impact Research and Cooperation Partners;
Steffen,
W.
Potsdam Institute for Climate Impact Research and Cooperation Partners;
Tyson,
P.
Potsdam Institute for Climate Impact Research and Cooperation Partners;
