Comment on 'Magnetospheric origin of energetic (E greater than or equal to 50 keV) ions upstream of the bow shock: The October 31, 1977, event' by G. C. Anagnostopoulos, E. T. Sarris, and S. M. Krimigis

Comment on Hurst exponent

Comment on ``An unexpected pattern of distinct weekly periodicities in climatological variables in Germany'' by Dominique Bäumer and Bernhard Vogel

Comment on ``Earthquake magnitude estimation from peak amplitudes of very early seismic signals on strong motion records'' by Aldo Zollo, Maria Lancieri, and Stefan Nielsen

Comment on ``Entropy, energy, and proximity to criticality in global earthquake populations'' by Ian G. Main and Fahad H. Al-Kindy

Comment on ``Holocene tsunamis from Mount Etna and the fate of Israeli Neolithic communities'' by Maria Teresa Pareschi, Enzo Boschi, and Massimiliano Favalli

Comment on ``Long-Term Global Heating From Energy Use''

Comment on ``Maxwell, Electromagnetism, and Fluid Flow in Resistive Media''

Comment on ``Shale diapirism in the Quaternary tectonic evolution of the Northern Apennine, Bologna, Italy'' by Andrea Borgia et al.

Comment on ``Solving the mystery of booming sand dunes'' by Nathalie M. Vriend et al.

Comment on ``The First Accurate Description of an Aurora''

Comment on ``The Predictability of the Magnetosphere and Space Weather''

Comment on ``Tidal synchronicity of the 26 December 2004 Sumatran earthquake and its aftershocks'' by R. G. M. Crockett et al.

Comment on ``Time series, periodograms, and significance'' by G. Hernandez

Comment on “Importance of pre-existing oceanic conditions to upper ocean response induced by Super Typhoon Hai-Tang” by Z.-W. Zheng, C.-R. Ho, and N.-J. Kuo

Comment on “Natural magnetic disturbance fields, not precursors, preceding the Loma Prieta earthquake” by Wallace H. Campbell

Comment on “On the cause of the 1908 Messina tsunami, southern Italy” by Andrea Billi et al.

Comment on “Relationship between accelerating seismicity and quiescence, two precursors to large earthquakes” by Arnaud Mignan and Rita Di Giovambattista

Commentary: Torino - a working alternative?

Comments concerning the origin of the Bz component of the interplanetary magnetic field and the geoefficiency index in Akasofu's model