When, during his Senate confirmation hearing, Holdren was asked about his penchant for scientific overstatements, he responded that "the motivation for looking at the downside possibilities, the possibilities that can go wrong if things continue in a bad direction, is to motivate people to change direction. That was my intention at the time."
"Motivation" is when Holdren tells us that global warming could cause the deaths of 1 billion people by 2020. Or when he claimed that sea levels could rise by 13 feet by the end of this century when your run-of-the-mill alarmist warns of only 13 inches.
"Motivating" -- or, in other words, scaring the hell out of people -- about "possibilities" is an ideological and political weapon unsheathed in the effort to pass policies that, in the end, coerce us to do the right thing.
Holdren's past flies in the face of Barack Obama's contention, made on the day of the science czar's appointment, that his administration was "ensuring that facts and evidence are never twisted or obscured by politics or ideology."
Holdren embodies the opposite, actually.