I am trying to remember a book I read in my teenage years (so the 1980's) that I thought was called "Ice Planet", but I can't find under that name.
The story is told from the viewpoint of what we later learn is an alien, and the first hint that the planet in question is Earth comes from the statement that it was special because mercury was liquid.
I believe the alien worked for a kind of drug control department to stop smuggling tobacco which had a much stronger effect on aliens than on humans.