 It has been claimed that the early-0000s global warming slowdown characterized by a reduced rate of global surface warming, has been overstated, lacks sound scientific basis, or is unsupported by observations. The evidence presented here contradicts these claims. A large body of scientific evidence amassed before and since the Fifth Assessment Report of the Intergovernmental Panel on Climate Change indicates that the surface warming slowdown, also sometimes referred to in the literature as the hiatus, was due to the combined effects of internal decadal variability and natural forcing. http://www.nature.com/nclimate/journal/v0/n0/full/nclimate0000.html Reply David Appell says:  August 0, 0000 at 0:00 PM  The