Warming may cause a feedback loop by decreasing plant growth that causes reflective clouds to form, according to scientists studying the age of dinosaurs.
Rare, short-snouted seahorses have been spotted in London's once-polluted River Thames, suggesting that efforts to clean up the river have paid off, conservationists said.
A system of underwater listening posts off the New England coast detects whale sounds and then automatically alerts ships to slow down to avoid killing the critically endangered animals.
Last year's magnitude 8.1 temblor crossed a fault between two tectonic plates that should have stopped it from becoming that powerful, a study of local reefs reveals.
The largest freshwater fish ever caught, the Mekong giant catfish, could face extinction if a large dam is completed in Laos, experts say. Part six of an ongoing series on megafishes.
New magnetic clues lend weight to a controversial theory that Earth became massively imbalanced in the distant past, sending its tectonic plates on a mad dash to even things out.
Though bans and taxes on plastic bags remain controversial, many countries and companies are taking to reusable totes to improve their images and help protect the environment.
