"In the 600-year long Roman warming (3rd Century BC-4th Century AD), it was 4 degrees C warmer than now," he said. "Sea levels did not rise and ice sheets did not disappear. The Medieval Warming (AD 800-1300) followed the Dark Ages and for 400 years it was 5 degrees C warmer. Sea levels did not rise and the ice sheets remained."
There is a saying among climate scientists: "No problem, no money."
AGW is becoming ever more indefensible.