The World's Oceans: Geography, History, and Environment
The Push for Social Change: The Environmental Movement
Science and Sustainability: Science and Sustainable Water
Let's Find Out! Our Dynamic Earth: The Rock Cycle
Climate Change: Our Impact on Earth: Weather Patterns
The Science of Renewable Energy
Global Viewpoints: Extreme Weather Events
The Study of Science: Earth Science
Big Business: Inside the Gold Industry
Climate Change: An Encyclopedia of Science, Society, and Solutions
The Nile: An Encyclopedia of Geography, History, and Culture
Backyard Biomes: There Are Grasslands in My Backyard!
The Global Water Crisis: A Reference Handbook
UXL Encyclopedia of Weather and Natural Disasters
The Economics of Energy: The Pros and Cons of Algae Biofuel
The Economics of Energy: The Pros and Cons of Wave Power