A planetary boundary for green water
Green water — terrestrial precipitation, evaporation and soil moisture — is fundamental to Earth system dynamics and is now extensively perturbed by human pressures at continental to planetary scales. However, green water lacks explicit consideration in the existing planetary boundaries framework that demarcates a global safe operating space for humanity.
In this Perspective, we propose a green water planetary boundary and estimate its current status. The green water planetary boundary can be represented by the percentage of ice-free land area on which root-zone soil moisture deviates from Holocene variability for any month of the year. Provisional estimates of departures from Holocene-like conditions, alongside evidence of widespread deterioration in Earth system functioning, indicate that the green water planetary boundary is already transgressed.
Moving forward, research needs to address and account for the role of root-zone soil moisture for Earth system resilience in view of ecohydrological, hydroclimatic and sociohydrological interactions.
General news | 2023-11-30
“We need to transition back within all Planetary Boundaries”
Phase out fossil fuels, transform the food system, and remove pressures on all planetary boundaries — in a just way. Centre researchers send a clear message to all participants at COP28
General news | 2023-11-28
Putting resilience at the heart of COP28
Stockholm Resilience Centre will host and join a range of activities at COP28. The participation is done in close collaboration with the Global Resilience Partnership and our development programme SwedBio
General news | 2023-11-27
First Swedish national citizen assembly on climate could show the way to transformation
Can a citizen assembly come up with ideas on how Sweden could live up to the Paris Agreement? This will be tested in a new collaboration of Swedish universities, which Stockholm Resilience Centre is a part of
General news | 2023-11-15
Researchers from the Centre listed among the world’s most cited
Four researchers associated with Stockholm Resilience Centre made it onto the 2023 Clarivate Analytics overview, a ranking of the most cited scientists in the world
Research news | 2023-11-14
Norms must change in order for academia to walk the talk on sustainability, new paper argues
Sustainability research is rarely sustainable, neither for the planet nor for academics, argues a new paper. In it, researchers call for a rethink of current norms and practices
Research news | 2023-11-13
New research maps 14 potential evolutionary dead ends for humanity and ways to avoid them
Humankind risks getting stuck in 14 evolutionary dead ends, ranging from global climate tipping points to misaligned artificial intelligence, chemical pollution, and accelerating infectious diseases