Describes ways to protect and preserve the land we live on.

Combines geography, history, economics, and political science with an environmental outlook to provide insights into the development of mankind and how that progress has affected the planet.

Deals with the reasons for the number of animal species that have become extinct throughout the world.

Looks at the geography and people that make up river regions throughout the world, focusing on the changing characteristics of both.

"In an alternate past--or possible future--a mighty tree stands on the banks of a winding river, bearing silent witness to the flow of time and change. A family farms the fertile valley. Soon, a village sprouts, and not long after, a town. Residents learn to harness the water, the wind, and the animals in order to survive and thrive. The growing population becomes ever more industrious and clever, bending nature itself to their will and their ambition:...

World-renowned behavioral scientists Jane Goodall and Marc Bekoff have set forth ten trusts that we must honor as custodians of the planet. They argue passionately and persuasively that if we put these trusts to work in our lives, the earth and all its inhabitants will be able to live together harmoniously. The Ten Trusts expands the concept of our obligation to live in close relationship with animals -- for, of course, we humans are part of the animal...

Humans have influenced the world around them since they first walked on Earth. Hunting has impacted animal populations. Pollution and deforestation have affected habitats. Humans have also worked to protect the environment through preserves and breeding programs. In this title readers will learn about both the positive and negative impacts humans have on the biosphere. Meets Next Generation Science Standards.

Updated for 2020, Learn about the impact that humans have on the Earth, its environment, and how to reduce damage.

Nitrogen, oxygen, argon, and carbon dioxide are all gases in Earth's atmosphere. But what happens when there is too much or two little of a certain gas? Readers will learn how every day activities such as driving, heating buildings, and using aerosols release harmful gases into the air and how it affects the air we breathe. Meets Next Generation Science Standards.