We’ve long discussed the bias imparted by ex post selection of data depending on whether it went up in the 20th century.  Likening such after-the-fact selection to a drug study carried out only on survivors. The Jacoby and d’Arrigo 1989 network was a classic example: the original article reported that they had sampled 36 northern treeline … Continue reading Discovery of Data for One of the “Other 26” Jacoby Series