Claim: Earth hottest in 1,400 years
Fueled by industrial greenhouse gas emissions, Earth's climate warmed more between 1971 and 2000 than during any other three-decade interval in the last 1,400 years.
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#1 Apr 23, 2013
Don't know why they looked at 1400 years, the temperature rate of increase in the first half of the 20th century was the same as the rate of increase in the second half of the 20th century.
The time period of the 20th century the most recent increase is compared to is the 1951 to 1980 time period. The above chart shows 1951 to 1980 is a time of cooling.
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