Hydrologists experiment with a groundwater-banking technique that could ease drought pains
For 26 years forests around Chernobyl have been absorbing radioactive elements, but a fire would send them skyward again--a concern as summers grow longer, hotter and drier
Once on the verge of extinction, North America's largest land birds have made a dramatic comeback. To ensure their continued survival, biologists are relying on high-tech gadgets and unusual interventions
California cities are pumping their treated wastewater underground to create electricity
The massive underground water source feeds the middle third of the country but is disappearing fast. Can it be conserved?
To save orangutans, scientist Willie Smits is restoring a rain forest—and creating new livelihoods for the Indonesian families who help him