The widespread release of trout modified to be sterile has been given the go-ahead in England and Wales to give anglers sport while boosting the fortunes of native fish.
More than 500 seismic events have rocked Reno, Nevada, in the past week alone, sending scientists scrambling to understand whether the quakes portend a Big One.
A U.S. federal judge has ordered the Interior Department to decide within 16 days whether polar bears should be listed as a threatened species because of global warming.
A limited range and specialist diet mean that the Arctic porpoise may be slightly more sensitive to habitat changes linked to global warming, a new report says.
The biggest squid ever caught has begun defrosting in a huge tank. Already it's yielding clues to the species' behavior and giant size, scientists say.
Arctic precipitation has risen more dramatically in the past 50 years than predicted, so estimates of future change "may underestimate what's coming down the pipeline," researchers say.
Insect infestations are turning forests in British Columbia into net carbon sources, according to new research that may force researchers to revise climate change models.