6 ms·

It is 1850-1900 average per the article

• luis_cho 3y ago
  Ok but what is the value? Is there hard value like "15.4 degree celcius"?
  • jeffbee 3y ago
    Nobody ever expresses it that way because various sources of that baseline temperature have absolute offset errors and uncertainties, but with consistent methods you can ignore the absolute offset and work with the delta over historical average instead.
  • Lutger 3y ago
    Somewhere between 13 and 14.