At future high-energy accelerators, the traditional methods of studying CP nonconservation will no longer be useful. We present potential new ways to find CP nonconservation at high-energy e+e- and pp¯ colliders which use jet variables in inclusive or semi-inclusive processes. These make use of asymmetries formed with beam and jet momenta. Signals are estimated in the standard model and appear to be small, but the tests could be sensitive to CP nonconservation in new interactions which become visible at higher energies.