Macdougall, J. D.

Examines the use and development of radiocarbon dating for determining the age of organisms and objects such as fossils, and covers the work of scientists including James Hutton, William Smith, Arthur Holmes, and others whose work has advanced the science of geochronology.

Examines the causes and effects of ice ages throughout history, tracing the development of scientific ideas about ice ages and profiling the lives of men and women who have contributed to the understanding of why and how ice ages happen.

Introduction to the geologic and biologic life of planet Earth, answers questions on how the planet formed, and how landmasses develop. Also explores new theories of how life might have emerged from outer space, and latest theories about global warming.

Looks at the Earth's past through rocks, ice cores, and other sources, as a way to examine and solve its current and future challenges.