The hybrids may have an advantage over polar bears because their jaws enable them to eat a more diverse range of foods.
It's real. It's happening. It's accelerating. And it's our fault. Human activity — particularly the production of greenhouse gasses from fossil fuel emissions — is reshaping our planet, effecting rapid environmental change at a rate never seen before. Global temperature averages are creeping upward, seas are warming, rising and becoming more acidic, and extreme weather events such as droughts, wildfires, floods and powerful storms are more commonplace. Here's where you'll find the latest on the effects of climate change, and the measures that scientists, world leaders and innovators are taking to reduce our harmful impact on the planet and mitigate the damage already done.
A third of Antarctica's vast offshore ice shelves would risk collapse into the ocean if the world warms by 4 degrees Celsius (7.2 degrees Fahrenheit) above pre-industrial levels.
Thousands of acres of greenery in North Carolina were converted to 'ghost forests' in the last three decades, and the trend is expected to continue with climate change.
Plant fossils that may be a million years old hint that Greenland's icy shell melted away more recently than expected — and could melt again.
If humans don't curb climate change, the average summer could last 6 months long by the year 2100, a new study finds.
Sea levels will probably rise faster than the most mainstream climate models predict, according to a new study.
The Greenland Ice Sheet is one of the largest ice sheets in the world. But it might not be for much longer, if Earth continues to warm.
Researchers with NASA and NOAA released their annual assessments of global temperatures and climate trends, finding 2020 to be one of the hottest years in 140 years of record-keeping.
A triple-threat of climate change, biodiversity loss and overpopulation is bearing down on Earth, a new paper from 17 scientists warns.
A new study shows that due to pollution already released, Earth will eventually blow past Paris goals. But that doesn't mean all is lost.
Sustainable sources of energy are renewable and are generally less harmful to the environment than fossil fuels.
From record wildfires to a bumper crop of hurricanes to melting poles, here are some of the biggest signs in 2020 that climate change is speeding up.
The moon's tides affect how much methane is released from seafloor sediments and the implications are huge.
The U.S. can cut its carbon output to zero by the middle of the 21th century, according to a major new Princeton University study. It might even save money.
Iceberg A-68a is just a few hundred miles from crashing into South Georgia island, new photos from the Royal Air Force reveal.