Sea ice and waterways along the north side of Canada’s high-Arctic island reveal compelling patterns when viewed from above.

The river’s high sediment load contributes to the abrupt change in its shape as it exits the Himalayas and hits flatter land.

The region of rolling hills and valleys is part of a geologic formation known as the Ridge and Valley Province that stretches from New York to Alabama.

The Sierra Madre Oriental is part of a chain that stretches across three continents.

A new study led by researchers at UC San Francisco has found that among older Americans with cognitive impairment, the greater the air pollution in their neighborhood, the higher the likelihood of amyloid plaques – a hallmark of Alzheimer’s disease. 

In a ground-breaking new study, scientists used innovative molecular techniques to explain how corals on the east coast of Australia survived previous tough conditions—enabling the Great Barrier Reef to become the vast reef it is today.

As temperatures rise due to climate change, the melting of polar ice sheets is accelerating. 

Under the worst-case scenarios laid out in the United Nations’ climate change projections, global temperatures would increase more than 3.6 degrees Fahrenheit (2 degrees Celsius) by 2100, leading to at least 1.5 feet (0.5 meters) in global sea level rise and an array of disastrous consequences for people and planet. 

Results of a new five-year study of recycled concrete show that it performs as well, and in several cases even better, than conventional concrete.

Scientists soaked various plastic samples in seawater then removed the plastic and raised sea urchin embryos in the water.