The difference comes down to millimeters. But this new discovery will likely intensify calls for further research and conservation.
A new study says that the elephant population in a key Central African sanctuary is diminishing rapidly.
In this edition: Morocco's lessons on climate-smart agriculture; managing dams gets tougher as more precipitation falls as rain not snow; the great bird count.
Amid concerns about climate change and habitat destruction, thousands of citizen-scientists look to the skies to track the progress of birds as the Great Backyard Bird Count begins.
A new study makes the case that a mostly submerged landmass about two-thirds the size of Australia meets all the usual criteria for a continent.
What's next for the EPA? Some fear nominee Scott Pruitt's intentions, but others say the green revolution's momentum will limit damage.
Warm air and warm water bring more bad news for marine life.
El Niño brought unprecedentedly powerful waves to the Pacific Coast in 2015-2016, while droughts starved beaches of sediment, according to a new study.
A new comprehensive study of previous research has grim conclusions, but could bolster efforts to protect species from climate change.
Thousands of residents have returned home since the evacuation order was lifted on Tuesday, while others are waiting to see how the dam handles this week's storms before making the journey.
The daily data from the US National Snow and Ice Data Center (NSIDC) shows that the sea ice extent on Monday shrunk to 883,015 sq miles.
The rusty patch bumble bee had been granted endangered species protections under the Obama administration.
In this edition: Community-size projects aim to democratize solar energy; big-name Republicans push 'carbon dividends' for all; man-made pollinators.
Safety concerns at the Oroville Dam center on engineering and maintenance. But dams also face new challenges in managing water in an era when rains can be heavier, and less precipitation is falling as snow.
US federal judge James Boasberg rejected a request by two Native American tribes to halt construction of the remaining section of the Dakota Access oil pipeline until their lawsuit over the project is resolved.