human influence on nature

"A historical account of extreme weather events and climate patterns, including human events leading up to observable changes, the people involved in studying trends, and the lingering aftermath"--Provided by publisher.

It is believed that if global temperatures rise by over 3.5?C, up to 70 percent of the world's known species would go extinct.

"Since their appearance on Earth, humans and their ancestors have impacted their surroundings. However, they've affected some of these environments more severely than others. In this book, readers will learn how human activities, such as burning fossil fuels and hunting, have directly and indirectly impacted tundra environments for thousands of years. Fact boxes and sidebars provide readers with supplementary information about the subject matter, while full-color photographs show the damaging effects of human activities on tundra environments"--Provided by publisher.

"Earth is constantly changing. However, over the last several decades, human activity has accelerated these changes around the world. Mountains, for example, may seem permanent and unchanging, but they are just as fragile as Earth's other environments. . . This title explores the impact that humans have on mountain environments, from the creation of roads and ski slopes to the use of explosives to create mines. Age-appropriate text is supported by full-color photographs, fact boxes, and sidebars"--Provided by publisher.

"Rain forests are one of a number of ecosystems on Earth that have been negatively affected by human activities. This book explores the different ways humans have impacted the plants and animals that call rain forest environments home. Full-color photographs depict harmful human activities and conservation efforts while fact boxes and sidebars provide readers with additional information about how rain forest environments have changed since the dawn of the human race"--Provided by publisher.

"This . . . journey through the continent of North America helps show how humans affect, and are affected by, the environments in which they live. Readers will gain an understanding of the continent's various landforms, resources, and human activities. Examples featured include dog sledding in Greenland, floating on a barge down the Mississippi River, and driving by truck along the Pan American Highway"--Provided by publisher.

"Find out how humans use water and how to protect the water supply"--Back cover.

"Takes readers back to our first steps as Homo sapiens, and examines how we've evolved from cavemen to the dominant species on Earth. Take a closer look at the Bronze and Iron Ages, how we went from small settlements to super cities, our impact on the Earth and the sixth major mass extinction."--Google Books.

"Learn about alternative energy sources such as solar, wind, and geothermal energy, and what they can do to positively affect life on Earth"--Back cover.

Describes the Florida Everglades, the evolution of this unique area, and the impact humans have had on its once-abundant life forms.