Earth and Cosmos

Book excerpt: Earth and Cosmos presents a comprehensive view of the many connections between the environment of Man on Earth and the environment of the Earth in the cosmos. Topics covered range from matter, radiation, and the basic forces of nature to Earth's relation to the universe, the galaxy, and the sun. The energy balance and global circulation of the atmosphere are also discussed, along with continents, oceans, and climate. This book is comprised of 13 chapters and begins with an overview of the environment of Man on Earth, with emphasis on the Earth's chemical composition and how it is related to both cosmic and terrestrial processes; the radiation environment at the Earth's surface and above; how the atmosphere interacts with both solar and terrestrial radiation; and climate. The following chapters explore matter, radiation, and the laws of nature in relation to the universe; how the terrestrial environment is related to the structure of the universe as a whole; how the composition of the solar system and the Earth reflects the history of the galaxy; and the stability of the Earth's environment. The origins of life on Earth and the impact of human activities on the planet are also considered. The last chapter speaks of the future of humanity, and notably of the problem of the population explosion and its consequences. This monograph will be of interest to students, astronomers, planetary scientists, astrophysicists, biologists, chemists, and geologists.