A few days I published 10 randomly chosen graphs of TMAX using Environment Canada’s monthly summaries.
I picked 1980 to 2015 partly to create a round number and partly because that is sort of when AGW became noticeable.
I picked TMAX because I think TMIN’s are rising because of UHI.
The red lines indicate a warming trend. The blue a cooling trend.
Anyone see evidence of CO2 making it warm?
Here are 10 more.