From Toilet to Tap
Filtered sewage water may be the key water source of the 21st century.
by Jennifer Barone
Two Strokes and You're Out
Impressive new tech reduces pollution from small engines by almost 90 percent.
The Next Steps Toward a Sustainable Planet
Environmental activist Laurie David gives a state of the union on the environment.
Movie Camera to the Stars
The Earth's fastest telescope aims to make the best sky map ever created.
Wildlife Conservation 2.0
A new software-based approach may be the key to saving thousands of species.
Want to Help the Environment? Eat Insects.
A group of experts endorse bugs as a nutritious and sustainable food source.
Is Nuclear Energy Our Best Hope?
Even the creator of the holistic Gaia hypothesis has come around.
How Big Is DISCOVER's Carbon Footprint?
That one little magazine is responsible for 2.1 pounds of carbon dioxide.
The Dirty Truth About Plastic
BPA and other plastics may be as harmful as they are plentiful.
