The climate has always changed chaotically and unpredictably There has never been a “Normal Climate”

The climate has always changed chaotically and unpredictably. There has never been a “Good and Normal Climate”. The use, by the IPCC, of the period 1850-1900 as the start reference period from which to measure Global Warming is entirely inappropriate and Unscientific The 20th and 21st Century increases in Global Average Temperature are being measured from the coldest point of the past 10,000 years