Shadow Zones
Renowned oceanographer and geophysicist Walter Munk talks about shadow zones, which develop in response to surface heating and other geophysical phenomena, and behind which the volume of sound is much lower than in surrounding areas.
Scattering
Renowned oceanographer and geophysicist Walter Munk talks about scattering, which occurs as sound bounces off bubbles, suspended particles, organisms, the surface, the bottom, or other objects. Small-scale temperature changes which act like foreign ...
Career Focused on the Environment, A
Former Sierra Club president David Brower talks about the origins of his interest in the environment. He also discusses his belief that, while humans are the first species to learn how to destroy the environment, we are also capable of fixing at lea...
Differences Between Oceans and Continents (Part 1)
Geophysicist and geologist Tanya Atwater talks about the very different ways in which oceans and continents are formed and how each changes over time.