Hotter Than Hell

The next time you hear someone yapping about how global average temperatures have increased by some decimal fraction over the last several decades, think about this. It's not like we have temperature data from all over the earth from the last 100 years accurate out to three decimal places. I do think there is anecdotal evidence for some warming over the last 100 to 150 years, but that is most likely a rebound back toward "normal" after the Little Ice Age and the Year Without Summer.