Can river sediment reach Australia's vulnerable outer reef?
A team of biologists is on a microbial mission around the world's oceans.
Should we conserve regions with higher numbers of species—or regions with more species variety?
An ongoing effort to reduce agricultural pollution in Florida's Everglades is seeing results.
Space Shuttle data will help conserve "invisible" waterways.
Raising animals is more damaging than transportation.
Global warming is stressing populations.