5 reasons why lock in is unlikely in SRM geoengineering

(1) the early recognition of the risks of lock in 

(2) the realisation that there is very unlikely to be a single geoengineering solution, rather a suite of co-ordinated efforts (silver buckshot as opposed to a silver bullet)

(3) the desire, at governmental level, to have a balanced portfolio of research that includes a strong carbon dioxide reduction (CDR) component

(4) favouritism of the public towards CDR

(5) the trans-boundary ethical, political and governance challenges that a  ‘solely global’ solution presents.