Smerdon's study is the first to examine the future risk of «megadrought» in the southwest and central United States in the context of historical episodes of drought in the same regions. (kottke.org)
He started showing still - life paintings in the early 1960s and toward the end of the decade began working on large, ungainly and frankly illustrative pictures of historical episodes with titles like «John Adams Accepts the Retainer to Defend the British Soldiers Accused in the Boston Massacre.» (timesunion.com)
Superimposed on the secular trend is a natural multidecadal oscillation of an average period of 70 y with significant amplitude of 0.3 — 0.4 °C peak to peak, which can explain many historical episodes of warming and cooling and accounts for 40 % of the observed warming since the mid-20th century and for 50 % of the previously attributed anthropogenic warming trend (55). (pnas.org)