[Head416]

And how is this measured? Where are the thermometers? Next to factories and power plants? In warm tropical regions? How do you come up with a weighted-average temp for the globe based on location? Or do you just throw out a bunch of thermometers and average the temps? How many are placed in a given region? Is there one in every lat/long grid around the planet? Do they average the high from each day on each thermometer? The low? Do they take temp every hour and average that? Or do they wait until the sun is shining, then take a reading?

We should get a big meat thermometer and measure the earth's temp that way.