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Understanding the vulnerability of different US coastal communities to the likely harmful effects of ocean acidification on shellfisheries should inform the development of effective adaptation measures.
Solar radiation management – a form of geoengineering – could be used to cool the planet but has potential risks. A scenario for solar radiation management is proposed that is temporary, moderate and can be adjusted in light of new information.
Lack of progress in global climate change negotiations has revamped interest in polycentric approaches – sub-global mechanisms to reduce greenhouse gas emissions. It is still unclear why these mechanisms might achieve better outcomes than global negotiations. This Perspective outlines themain advantages of polycentric approaches over a global one by reviewing significant theoretical, empirical, and experimental evidence.
Projections and predictions of future climate today generally rely on ensembles of climate model simulations. This Perspective advocates a radically different approach, using numerical weather predictions and knowledge of past weather events.
