Abrupt changes in GHCN station-level temperature records contradict the anthropogenic global warming (AGW) claims.

Guest post by Jens Raunsø Jensen Preamble Inspired by a statement by Dr. Kevin Trenberth in the e-mails referred to as Climategate 2.0 (#3946 discussed here), it is hoped that climate scientists will have “an open enough mind to even consider” that the global warming of the 20th century could have occurred mainly as abrupt…

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