A superconductive cable anchored in the Earth carries an electric current of great density. The Earth magnetic field generates Lorentz force which levitates the cable. An elevator attached to the middle of the cable transports cargo. Lightning, wind, and icing can break the cable. Geomagnetic levitation is impracticable for the following reasons:
Richard A. Moss, "Use of a Superconductor Cable to Levitate an Earth Tethered Platform," Journal of the Astronautical Sciences, Vol. 37, No. 4, October-December 1989, pp. 465-475.