We can’t really be carbon free. We’re mostly made out of carbon. If we removed it, there wouldn’t be much left of us, just a salty puddle. It’s a catchy phrase though. Easier to say than than “carbon dioxide emission eliminated” (although that does have a bit of a ring to it).
So go carbon dioxide emission eliminated! Ditch your gas burner or plug in for some Hot Wheels. They’ve come a long way and are now available in human size. Build a big orange ramp on your roof and coast to work every day. You’ll need a ramp at work to coast home, too.