The heroic combat search and rescue work of the United States Air Force’s pararescue jumpers, or PJs, is something worth knowing about. After all, these courageous PJs are the first in line to find an
Looks at the problems of depleted and contaminated soil and how they affect the amount, quality, and safety of the food supply, and therefore, the health of people who rely on that food.
Invasive species are taking over native plants’ habitats. Common control methods are dangerous or impractical. Some people are now turning to goats as a nontoxic and versatile way to deal with invasiv
This book discusses the science behind avalanches and their effects. The chapters explore case studies of avalanches, identify environmental factors that cause these disasters, and explain how experts
Examines the patterns in weather and how scientists study them, discussing the clouds, wind, air masses, storm cells, thunderstorms and other severe storms, and the recurrent series of events known as
Introduces basic scientific principles about rocks and minerals, providing instructions for simple experiments that examine such topics as hardness, formation, and erosion.
