On 24 November 2009 , four days after the start of the Climatic Research Unit email controversy , the university stated that over 95 % of the CRU climate data set had already been available for several years , and the remainder would be released when permissions were given . The university worked closely with the Met Office , which sent requests to National Meteorological Organisations for agreement to waive confidentiality on raw instrumental data , as CRU had announced on 12 August 2009 . Some gave full or conditional agreement , others failed to respond , and the request was explicitly refused by Trinidad and Tobago and Poland
Climatic Research Unit email controversy
Climatic Research Unit email controversy
Freedom of Information requests to the Climatic Research Unit