"This new reference work offers a wealth of absorbing information on all aspects of the oceans, their circulation, climate systems, and the life they support. Its accessible treatment offers up-to-date information on topics ranging from oceanic ridge formation and hydrothermal vents, to the rhythm and patterns of tides, currents, and weather systems, to the astonishing diversity and complex interactions of marine communities." "Stunning photographs - many of them illustrating exciting new underwater research projects, brilliant explanatory artwork and maps, together with clear, authoritative text, combine to make this an invaluable guide to a unique, vital, but little understood component of our planet."--BOOK JACKET.