claim: It projects that temperatures are likely to be anything from 1.5 to 4.5 degrees Celsius ( 2.7 to 8.1 degrees Fahrenheit ) warmer by the latter part of the century
evidence: In SI units, the Planck temperature is about 1.417×1032 kelvin ( equivalently, degrees Celsius, since the difference is trivially small at this scale ), or 2.55×1032 degrees Fahrenheit or Rankine.