claim: [T]he raw data, the actual thermometer data[...] shows that the US has been cooling for 80 to 90 years.
evidence: For instance, Mercer published a study in 1978 predicting that anthropogenic carbon dioxide warming and its potential effects on climate in the 21st century could cause a sea level rise of around 5 metres (16 ft) from melting of the West Antarctic ice-sheet alone.