The story of the evolution of tropical rain forests, their recent and rapid destruction, and the intense efforts of scientists to understand them even as they disappear. This film gives viewers a better appreciation of the importance of tropical rain forests on a global scale.
Scientists now know where each continent was in relation to the Poles at any given time. These developments have come from discoveries in paleomagnetism, oceanography and seismology, and they are affecting every earth science from geochemistry to earthquake engineering.
