The U.S. boasts more than 4 million miles of rivers, peppered with laws and regulations to protect access to drinking water and essential habitat for fish and wildlife.
articles
Ocean Temperatures Reached Another Record High in 2025
A new international analysis published in Advances in Atmospheric Sciences on 9 January finds that the Earth's ocean stored more heat in 2025 than in any year since modern measurements began.
Brown University Neuroscientists Help Identify a Biomarker for Alzheimer’s Disease Progression
Researchers at the Carney Institute for Brain Science have identified electrical activity in the brain that could predict progression to Alzheimer’s disease.
The Largest Ice Desert Has the Fewest Ice Nuclei Worldwide
New observations help explain why the southern hemisphere is warming less quickly than the northern hemisphere.
Fueling Research in Nuclear Thermal Propulsion
Going to the moon was one thing; going to Mars will be quite another.
What Past Global Warming Reveals About Future Rainfall
"Proxies" in geologic record show rainfall was more intense, but less regular during the Paleogene.


