IPCC – How not to compare temperatures

Guest post by Frank Lansner IPCC – How not to compare temperatures – if you seek the truth. There are numerous issues discussed intensely when it comes to IPCC-illustrations of historic temperatures, here for example the illustration from IPCC Third Assessment Report: Fig 1. Taken from IPCC TAR In short we have heard of problems…

The great imaginary ice barrier

Back on April 2nd, it looked like Arctic Sea ice extent at NSIDC would cross the “normal” line. See: Arctic Sea Ice Extent Update: still growing The image then looked like this: The line hit an “imaginary barrier” it seems, because like an  earthworm trying to tunnel through a sidewalk, sea ice extent took a hard…