Phew, it was only 16F! NYT Correction: December 25, 2010: “An earlier version of this post misstated Dr. Richard B. Alley’s calculation of the upper range of potential climate warming…’
'...if the amount of carbon dioxide in the atmosphere doubles. Dr. Alley, summarizing studies published by others, estimates the upper range as an increase of 16 degrees Fahrenheit, not 18 to 20 degrees. (Some other scientists have estimated that the warming could conceivably reach 18 to 20 degrees Fahrenheit.)'
