Real-World STEM: Global Access to Clean Water
Science and Sustainability: Science and Sustainable Wildlife Habitats
Let's Find Out! Our Dynamic Earth: Volcanic Processes
The World's Oceans: Geography, History, and Environment
Science and Sustainability: Science and Sustainable Water
Transforming Earth's Geography: Famine and Drought
Let's Find Out! Our Dynamic Earth: The Rock Cycle
The Study of Science: Earth Science
Climate Change: An Encyclopedia of Science, Society, and Solutions
Big Business: Inside the Gold Industry
The Nile: An Encyclopedia of Geography, History, and Culture
Backyard Biomes: There Are Grasslands in My Backyard!
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
The Global Water Crisis: A Reference Handbook