Freshwater Hero - Pete McBride
See how much you don't know about energy use and energy sources with this quiz from National Geographic.
Learn about the water consumed to make everyday products.
Explore Hawaii through facts and photos, related features, an interactive map, and more.
Natural Disasters --Tornado Pictures -- National Geographic
Sustainability at National Geographic
Habitat for Humanity of Washington, D.C. is a grantee of the Great Energy Challenge initiative.
Avoid these water-hogging plants in your landscaping.
National Geographic Maps makes the world’s best wall maps, recreation maps, travel maps, atlases and globes for people to explore and understand the world.
Quiz your knowledge on living green at National Geographic