Our modern world runs on energy to power our homes and industries. We all know the problems with burning fossil fuels to create energy— it pollutes the planet and we are running out of these resources. Discover the facts about renewable and non-renewable energy resources, how our energy use contributes to global warming, and what the future of energy looks like.
The huge variety of plants and animals that live on Earth is called biodiversity. As ecosystems are destroyed by climate change and human activity, plants and animals are becoming endangered and even extinct. Find out how the loss of biodiversity affects food chains and natural habitats, why it is important to humans, and how its loss threatens the health of all living things on the planet.
Natural resources on Earth are at risk of running out. Using too many natural resources, such as water, trees, and fossil fuels, is putting pressure on our supplies and damaging the environment. Discover the facts about how resources are used around the world, which resources are renewable and non-renewable, and what the future of natural resource management looks like.
Learn about population in countries around the world, and how changes in the number, age, and gender of people living in a place affect life there. Explore different settlements, from ancient towns to sprawling, modern cities. Find out why and where people migrate, and discover how we can protect our planet from the risks of overpopulation.
Learn about rivers and coasts and how water shapes the landscapes in different ways. Follow rivers from their source to the sea, and explore coasts around the world. Find out how erosion creates stunning waterfalls, and see how water affects our lives, from tourism and industry to the risks of flooding.
Find out about the different types of volcanoes and how they form. Learn how scientists monitor volcanic activity, and what makes some eruptions so much more destructive than others. Read about some of the most famous volcanic eruptions in history and their effects on the people and environment surrounding them.
In Coral Reefs, carefully leveled text and vibrant, full-color photographs take beginning readers on a tour of a coral reef. Readers learn about this important ecosystem and the variety of living things adapted to live there. A map shows readers where the world's coral reefs are located, while a picture glossary reinforces new vocabulary. Children can learn more about coral reefs online using our safe search engine that provides relevant, age-appropriate websites. Coral Reefs also features reading tips for teachers and parents, a table of contents, and an index.