One out of ten people on Earth is likely to live in a
climate impact hotspot by the end of this century, if greenhouse gas emissions
continue unabated. Many more are put at risk in a worst-case scenario of the
combined impacts on crop yields, water availability, ecosystems, and health,
according to a study now published online by the Proceedings of the National
Academy of Sciences (PNAS). It identifies the Amazon region, the Mediterranean
and East Africa as regions that might experience severe change in multiple
sectors. The article is part of the outcome of the Intersectoral Impact Model
Intercomparison Project (ISI-MIP) that will be featured in a special issue of
PNAS later this year.