Joe Reid wrote: 'A possible solution would be to rename the "degree Celsius" as simply the "celsius".'
That would give rise to two units for a temperature difference. Currently, the only acceptable SI unit for relative temperatures is the kelvin. The use of the kelvin both for temperature differences and for actual temperature is internally consistent, given that the reference point for actual temperature is absolute zero. I find the arbitrary zero point for the Celsius scale problematic in that respect. Bill Potts, CMS Roseville, CA http://metric1.org [SI Navigator]
