What is now at risk in the climate debate is nothing less than our ability to communicate with one another according to a protocol that binds all participants to seek reason and evaluate facts honestly. The ability to perceive reality is a prerequisite for self-governance. Wishful thinking and denial lead to dead ends. When it works, the democratic process helps clear the way toward reality, by exposing false argumentation to the best available evidence. That is why the Constitution affords such unique protection to freedom of the press and of speech.
—”Climate of Denial” by Al Gore writing in Rolling Stone (July 7, 2011)