ecology

Describes the various kinds of pollution and what is being done to protect the natural environment.

An exploration of the environment, covering pollution, global-scale changes, the green movement, and more.

An introduction to the science of ecology.

Warriors in Kenya are saving elephants. A teenager in Pennsylvania is donating oxygen masks for pets to fire departments. The World Wildlife Fund is working in more than 100 countries to protect species from extinction. This book features 12 stories about making a difference for animals around the world. Each chapter includes attention-grabbing photos and fascinating facts. Sidebars go beyond the basics, and prompts invite readers to think for themselves. A Ways You Can Help page offers suggestions anyone can try.

Explores habitats, observing and identifying lifeforms, and discovering the connections that bind them.

An introduction to photosynthesis and the food chain.

Contains facts, charts, and statistics from a variety of sources that provide information about water, discussing water use, surface and ground water, drinking water, oceans and coastal waters, wetlands, water in the arid West, and acid rain. Includes a glossary and references.

Describes the geographical features, climate, and plants and animals of the Arctic with emphasis on their interrelationship.

Presents more than four thousand alphabetized, cross-referenced entries on the various aspects of environmental studies, covering key issues, organizations, and personalities, and representing approaches from science, the social sciences, and the humanities. Also includes line illustrations, statistics, maps, figures and tables, and a bibliography.

"The environment is an essential but sometimes tough and weighty concept to grasp. This engaging nonfiction book takes readers back to the basics, offering an accessible overview of what makes up our environment, how those parts work, and why they matter. Divided into five sections--water, air, soil, energy, and climate--the book uses facts, figures, and simple language to give an overarching survey of our environment. Questions run throughout the text, creating a spirit of inquiry"--Provided by publisher.