No. The Celcius system is flawed due to its using numbers which don't exist. As blackmage_nuke so kindly put it, if it weren't for bogus numbers being made up, we'd all use Kelvin.
I don't have negative money. I owe positive money. There is no such thing as less than zero. It can't exist. It's impossible. I challenge you to prove me wrong.
And Tavrobel, I just spent a whole paragraph explaining how i doesn't exist and why and you turn around and tell me it does because what is it for? It makes no sense. The only reason i was invented was to solve equations which have no valid answer. Well, if you have to make up numbers which don't exist to get an answer, you have no answer. My brother, as I've previously stated, is a reputable mathematics teacher and refuses to teach imaginary numbers for many of the same reasons I refuse to acknowledge their existence.