Tom Watson MP, best known as the man who has uncovered so much of the UK's phone hacking scandal, gave the PA Annual Lecture on "Parliament and Phone Hacking". The lecture is here, with the discussion of FOI from 30 mins. In it he makes the case that his revelations of misbehaviour and outright corruption around the phone hacking scandal were entirely dependent on the Freedom of Information Act. He points out that the mandarinate and much of the political class are now seeking to restrict the scope of the Act and that we will now have a fight on our hands.
Climategate is mentioned briefly - referred to as a "scandal".