CEH Hydro-Climate Risks

Lead Research Organisation: UK CENTRE FOR ECOLOGY & HYDROLOGY
Department Name: UNLISTED

Abstract

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Publications

10 25 50
 
Description A team of scientists from the University of Exeter and the Centre for Ecology and Hydrology has pioneered a new process to reduce uncertainty around climate sensitivity - the expected long-term global warming if atmospheric carbon dioxide is stabilised at double pre-industrial levels.While the standard 'likely' range of climate sensitivity has remained at 1.5-4.5oC for the last 25 years the new study, published in the scientific journal Nature, has reduced this range by around 60 per cent. The study examined equilibrium climate sensitivity (ECS), defined as the global mean warming that would occur if the atmospheric carbon dioxide concentration doubled. It is a key tool for discussing and comparing climate models and an important point of policy discussions, including international climate change agreements. However, a range of ECS estimates have been calculated, which have been hard to reconcile. The new analysis suggests that extremely high estimates of this sensitivity can be ruled out.
Exploitation Route The research team believe that by dramatically reducing the range of climate sensitivity, scientists will be able to have a much more accurate picture of long-term changes to the Earth climate.
Sectors Environment