As for the name, they could continue with the "measurement" theme, and call this deck Centigrade, or Fahrenheit, or whatnot.
I doubt it. What would they use for earth and air? Pounds? Tons? Kilos? Cubic Centimeters?
They could go with 'Pascal' or 'Newton' for Earth, which would not only be using a measure used when determining how strong the material is, i.e. how many kilo-Newtons it takes to break, but also paying homage to a scientist, who I feel never get as much good publicity as they should sometimes.
As for Air, 'Bar' is a good name.
Though, the scientifically-minded may have realised that in both cases the units used as for pressure/weight, so who knows?