Arctic temperatures.

[Crick]

Frank, note how high the red line is above the green line.

Ocean and Ice Services | Danmarks Meteorologiske Institut

Notice here that Arctic temperatures since 2000 significantly exceed temperatures in the early 20th century and that the warming rate over the last 30 years has now hit a dramatic warming rate of 6.3C/century.

 

[jc456]

Frank, note how high the red line is above the green line.

Ocean and Ice Services | Danmarks Meteorologiske Institut

Notice here that Arctic temperatures since 2000 significantly exceed temperatures in the early 20th century and that the warming rate over the last 30 years has now hit a dramatic warming rate of 6.3C/century.

what was it prior to 1900?

 

[Crick]

You tell me.