It appears to me that long term climatologists may be suffering from the same afflictions as local weather celebrities, "It may be warmer tomorrow unless it gets cooler".
Attached is an interesting article from 1975 decrying the various
governments for not getting ready for the impending global cooling.
The chart is interesting because it is markedly different from
global warming charts for the same period. Change the word 'cooling'
to 'warming' and we have the same dystopian rhetoric used in any
number of articles from recent years. . . until this year.
Seems some may be changing their minds again. Here is an April 2013
article from Forbes. LINK