Think about it.

Does anyone with even a room-temperature IQ really think that standardized measurements of the annual, average temperature of the earth, which have been going on for many decades, based in information from all over the world, are a matter of opinion and debate in the scientific community?

It's as though your brand-new thermometer has been showing around 90 degrees Fahrenheit for a week, and you decide that means it's probably winter, or else the damn thing is broken.