The U.S. Fish and Wildlife Service has proposed listing two kinds of Missouri crayfish as threatened under the Endangered Species Act, as well as identifying "critical habitat" for their survival and recovery in the state's southeast watersheds.

US government scientists reported Monday that the Arctic Ocean's floating ice cover has shrivelled to its second lowest extent since satellite records began in 1979.

Cornell University scientists have engineered a key plant enzyme and introduced it in Escherichia coli bacteria in order to create an optimal experimental environment for studying how to speed up photosynthesis, a holy grail for improving crop yields.

Researchers have demonstrated a new endoscope that uniquely combines photoacoustic and fluorescent imaging in a device about the thickness of a human hair. The device could one day provide new insights into the brain by enabling blood dynamics to be measured at the same time as neuronal activity.

The reactive and piecemeal approach historically used to manage beaches in Hawai'i has failed to protect them. If policies are not changed, as much as 40% of all beaches on O'ahu, Hawai'i could be lost before mid-century, according to a new study by researchers in the Coastal Geology Group at the University of Hawai'i (UH) at Mānoa School of Ocean and Earth Science and Technology (SOEST).

In early March, when the true scope of the coronavirus pandemic was still widely unknown to the public, misinformation was rampant on social media such as Facebook and Twitter.

Until now, the history of superconducting materials has been a tale of two types: s-wave and d-wave.

Everglades restoration projects will require about $7.4 billion over the next 10 years, compared with $6 billion spent through 2019, the U.S. Army Corps of Engineers said while presenting a draft of its work schedule.

When we think about sponges, we tend to think of something soft and squishy. But researchers from the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) are using the glassy skeletons of marine sponges as inspiration for the next generation of stronger and taller buildings, longer bridges, and lighter spacecraft.

Projections based on climate models for the mid-Pliocene Warm Period (about 3 million years ago) suggest that countries in the tropical and subtropical southern hemisphere, including Brazil, may face longer droughts in the future. Annual rainfall may decrease as much as 30% compared with current levels.

For decades, scientists have urged policymakers to take prompt action to address climate change, but their calls have largely gone unanswered. Now, as wildfires ravage the west and hurricanes batter the Atlantic and Gulf coasts with greater intensity, a new study involving Washington University in St. Louis researchers finds consumers across the United States and in some European countries are...

A prestigious San Diego research institute and a Long Beach social benefit investment group are teaming to create what could be the first fish farm in federal waters.

In a review paper published in Frontiers in Plant Science, scientists urge the importance of combining the knowledge harbored by farmers of diverse crop varieties—which is often overlooked by scientists—with high-tech breeding done in laboratories.

A team of University of Queensland researchers has revealed why male funnel web spiders develop much deadlier venom than their female counterparts.

USDA Forest Service scientists have published an in-depth study on the value of tree planting as a means of offsetting carbon emissions in the United States. An analysis based on publicly available data from more than 130,000 forested plots in the Forest Service's Forest Inventory & Analysis Program found that fully stocking non-stocked and poorly stocked forests would result in an annual increase...

When a beautiful pup has a dental problem, it's time to call a veterinarian. But when it runs in the family, researchers take the case.

Biologists have long considered the origins and continued coexistence of the immense diversity of species found in our environment. How can we explain the fact that no single species predominates? A generally accepted hypothesis is that there are trade-offs, which means that no organism can do best in all conditions. One trade-off that is commonly assumed is that between gleaner organisms —which...

PSI scientists have gained a fundamental understanding of a highly promising material that could be suited to future data storage applications. Their experiments with strontium-iridium oxide, Sr2IrO4, investigated both the magnetic and electronic properties of the material as a thin film. They also analyzed how these properties can be systematically controlled by manipulating the films. This study...

NASA's Terra satellite obtained visible imagery of recently formed Tropical Depression 14W as it strengthened into a tropical storm. Terra satellite imagery showed the storm was organizing.

Arctic summer sea ice melted in 2020 to the second smallest size since records began 42 years ago, US scientists announced Monday, offering further stark evidence of the impact of global warming.

Researchers from the ICN2 Nanostructured Functional Materials Group, in collaboration with other institutions, have used a liquid phase exfoliation process to obtain nanosheets with enhanced electrocatalytical properties. The work is published in Ultrasonics Sonochemistry.

Firs and spruces dominate the tree population of the Black Forest with a share of 80 percent. However, such predominantly pure stands are particularly vulnerable to extreme events caused by climate change, such as storm damage, heat waves, and bark beetle infestations. In Baden-Württemberg, on average, every third tree is already sick. A conversion from pure to mixed stands could increase the...

A process developed at KAUST for depositing extremely thin and smooth films can make it easier to manufacture stable solar cells based on quantum dot technology.

The concept of sustainable nature tourism plays a key role in mediating conflicts between tourism and nature conservation, a new study from the University of Eastern Finland shows.