environmental aspects

Reveals how the voyages of Columbus reintroduced plants and animals that had been separated millions of years earlier, documenting how the ensuing exchange of flora and fauna between Eurasia and the Americas fostered a European rise.

Presents a comprehensive study of human civilization in the northeastern and midwestern sections of the United States, and focuses on economical and environmental issues, the relationships between different groups of people, and more.

A firsthand account of the authors' efforts to win back the Hudson River from the grip of pollution, discussing the formation of Riverkeepers, the environmental organization that has helped restore the Hudson, and offering advice on how citizens can get involved in reclaiming the country's waterways.

Full-color photographs and text document the ecosystem of the Florida Everglades, describing its unique plant and animal life and efforts to reverse the environment abuse in the area.

Describes the near extinction of America's buffalo and their native grasslands when settlers arrived in the West and drove the Indians to reservations. Explains how Theodore Roosevelt began a program of conservation that led to the revival of the buffalo and the grasslands.

Discusses the causes and effects of El Nino and focuses on the links between a variety of disasters as well as the scientists whose observations and research have contributed to an understanding of El Nino.

Based on evolutionary and biological principles, scientists explore what animals and the earth will look like 5 million years, 100 million years, and 200 million years.

A firsthand account of the authors' efforts to win back the Hudson River from the grip of pollution, discussing the formation of Riverkeepers, the environmental organization that has helped restore the Hudson, and offering advice on how citizens can get involved in reclaiming the country's waterways.

Explains what causes El Ni?o and discusses why it has the ability to change weather patterns throughout the world.

Looks at potential disasters such as global warming, meteorites, exploding suns, and viruses from outer space, and explores ways we might protect ourselves from these threats.