"...to show more warming, you change that to the 20th century average baseline.

Then to show more warming, you change that to the 20th century average baseline. - Eric Negrón
"You’re an alarmist. 

You want to show that warmer temperatures are now happening.

• First you start with a 1951 - 1980 baseline.
• Then to show more warming, you change that to the 20th century average baseline.
• But to throw the skeptics off, you lower the temperature baseline once again by pretending the 1880-1920 baseline is better...

https://www.co2.earth/global-warming-update

Notice how little temperature increase takes place between 1850 to 1920.