By Dr. Roy Spencer

Wednesday, July 29th, 2009

Those who promote the theory that mankind is responsible for global warming have been working for the past 20 years on a revisionist climate history. A history where climate was always in a harmonious state of balance until mankind came along and upset that balance.

The natural climate cycle deniers have tried their best to eliminate the Medieval Warm Period and the Little Ice Age from climate data records by constructing the uncritically acclaimed and infamous “hockey stick” of global temperature variations (or non-variations) over the last one- to two-thousand years.

Before being largely discredited by a National Academies review panel, this ‘poster child’ for global warming was heralded as proof of the static nature of the climate system, and that only humans had the power to alter it….([1] Full Story)