claim: For instance, in the original hockey stick (ending 1980) the last 30-40 years of data points slightly downwards.
evidence: The term hockey stick was coined by the climatologist Jerry Mahlman, to describe the pattern this showed, envisaging a graph that is relatively flat to 1900 as forming an Ice hockey stick's "shaft", followed by a sharp increase corresponding to the "blade".
category: Temperature record of the past 1000 years