since the hockey stick paper in 1998, there have been a number of proxy studies analysing a variety of different sources including corals, stalagmites, tree rings, boreholes and ice cores.
since the hockey stick paper in 1998, there have been a number of proxy studies analysing a variety of different sources including corals, stalagmites, tree rings, boreholes and ice cores.
hockey stick controversy:87
the mann, bradley & hughes 1998 (mbh98) multiproxy study on "global-scale temperature patterns and climate forcing over the past six centuries" was submitted to the journal nature on 9 may 1997, accepted on 27 february 1998 and published on 23 april 1998.