1. Potsdam Institute for Climate Impact Research; Germany
2. Department of Physics; Humboldt University; Berlin Germany
3. Stockholm Resilience Centre; Stockholm University; Sweden
4. Alfred Wegener Institute; Helmholtz Centre for Polar and Marine Research; Potsdam Germany
5. Institute for Complex Systems and Mathematical Biology; University of Aberdeen; UK
6. Department of Control Theory; Nizhny Novgorod State University; Russia