  This conference proceeding discusses new results arising from atmospheric
neutrino detection in the Super-Kamiokande and IceCube experiments.
Super-Kamiokande has measured atmospheric neutrinos in the energy range of 100
MeV-10 TeV and uses this data set to conclusively measure the east-west effect
to 8.0 (6.0) $\sigma$ for electron (muon) neutrinos. IceCube is ideal for
measuring high energy atmospheric neutrinos and has explored how different
production channels for atmospheric neutrinos contribute to the total overall
observed flux. The measurement is consistent with the conventional spectrum,
produced by the decay of pions and kaon, while the contribution from the prompt
channel (due to charm decay) is consistent with zero.
