Blue and Green: Without climate change mitigation policies, half of the world could face extreme water scarcity before the end of the century, a study has found. However, researchers from the Pacific Northwest National Laboratory (PNNL) also warned that poorly planned policies could exacerbate the crisis.
The study, which was carried out with the help of the Joint Global Change Research Institute, is comprehensive and used unique modelling technology. The model linked economic, energy, land-use and climate systems...