Fresh Water
Water Footprint Calculator
Tabulating the water impact of everything from tea to T-shirts
Follow the Money
Fish invasions linked to GDP
Dam It
Beavers are drought insurance
Ship Noise Stresses Freshwater Fish
Underwater noise pollution is on the rise worldwide, and new research shows that it stresses freshwater fish. Recordings of ship noise doubled secretions of the stress hormone cortisol in three species of fish that live in European lakes and rivers.
Leave It to Beavers
A new appreciation for dams as a source of amphibian habitat
Road Salt Turns Streams Toxic
New research shows that chloride levels are rising so fast that many streams in the northeastern U.S. could be toxic to sensitive freshwater life by the next century.
Muddy Waters
WE’RE INCREASING SEDIMENT IN THE WORLD’S RIVERS, yet only a tiny fraction of it ever reaches its coastal destination. Now for the first time, research led by James Syvitski at the University of Colorado offers a damming picture of sediment transport in the world’s large rivers.
Common Herbicide Lethal to Wetland Species
The environmental effects of pesticides may be even worse than we thought. A new study of how pesticides affect wetland species yielded a surprising result: a popular herbicide also kills tadpoles. Realistic concentrations of Roundup® essentially exterminated three out of five frog species tested in simulated ecosystems.
Capturing a River’s Memory
ARTIFICIAL NEURAL NETWORK pinpoints land use changes in a watershed
Point of No Return
EVIDENCE IS MOUNTING that fish populations won’t necessarily recover even if overfishing stops. Fishing may be such a powerful evolutionary force that we are running up a Darwinian debt for future generations.