The law of unintended climate consequences at work – study says 23% of warming in Europe since 1980 due to clean air laws | Watts Up With That?

http://wattsupwiththat.com/2014/07/25/the-law-of-unintended-climate-consequences-at-work-study-says-23-of-warming-in-europe-since-1980-due-to-clean-air-laws/