Dr. Masaki Kanao obtained his Ph.D. from Kyoto University. He is currently working at the National Institute of Polar Research in Tokyo, Japan. He is mostly interested in Earth's structure and dynamics from geoscience studies. Polar regions, both in the Arctic and Antarctic, have been investigated by using seismological and geophysical approaches. He is also interested in present Earth’s dynamics and tectonics of the continental lithosphere. Antarctic continent, as a member of the past Gondwana super-continent, has been a main target to reveal lithospheric evolution history. Recently, inter-disciplinary studies in terms of glacial earthquakes, cryoseismic events in Greenland and Antarctica have been focusing on involving environmental changes associated with global warming. These investigations in polar regions have been contributing to the development of all kinds of global Earth sciences.