claim: In one particularly damning email, CRU director Phil Jones said he had used ‘Mike’s Nature trick’ to ‘hide the decline’ in temperatures in the second half of the 20th century.
evidence: Many commentators quoted one email in which Phil Jones said that he had used "Mike's Nature trick" in a 1999 graph for the World Meteorological Organization "to hide the decline" in proxy temperatures derived from tree-ring analyses when measured temperatures were actually rising.
category: Climatic Research Unit email controversy