Oceanographer and adventurer Kim McCoy chats with Trey Elling about the 3rd edition of WAVES AND BEACHES: THE POWERFUL DYNAMICS OF SEA AND COAST, including: the moon's effect on the Earth's tides, what happens when a wave breaks near the shore, Kim's own adventures on a glacier, island, and surfing, the perpetual transfer of sand to and from beaches, climate change's impact on oceans and shorelines, and more.