effect of human beings on

"Describes why and how ... [Australia's cane] toads were first brought to Australia, how they spread far and wide, and what scientists and everyday people are doing to try to control their population today."--Provided by publisher.

A young boy who loves the countryside determines to find the source of the black cloud that hovers above it.

Examines the interaction between the environment and society, focusing on people's reliance on Earth's renewable, nonrenewable, and flow resources to meet the most basic needs for food, water and shelter.

Discusses the challenges of balancing the goals of economic development with the need to protect the environment, examining the positive and negative effects of industrialization, the quest for material benefits by developing nations, and efforts to safeguard the global environment.

Describes the different kinds of islands in the world and how they are created, the plants, animals, and people living on them, and how to protect their environment.

Examines the concept of sustainability, the capacity to provide for the needs of the world's current population without harming the ability of future generations to provide for themselves. Learn about factors that can affect sustainability such as carrying capacity, population density, and ecological footprint. Also explore some of the challenges and successes of sustainability in the rainforest, one of the world's most diverse habitats. Observe sustainability in action at a school that has employed green building practices and in a community that has used smart growth policies to combat suburban sprawl.

All of nature argues about the forms of God, so people are sent as a reminder of all that God is, although they do not seem to understand the message themselves.

A turtle carved in rock on a bluff over the Hudson River by Indians long ago watches with sadness the changes man brings over the years.

Explores the history of civilization and the effect humans have on nature.