The Trump administration moved Thursday to revoke Obama-era regulations on climate-changing methane leaks from oil facilities, a proposal that environmental advocates said would renounce key federal legal authority to regulate the gas's outsize damage to the climate.

The behavior of giraffe groups with calves is influenced more strongly by the risk of predators than is the behavior of all-adult groups, which is mostly determined by the availability of food. An international team of researchers from Penn State and the University of Zürich studied giraffe behavior in a 2,000 square kilometer region of Africa and pinpointed some of the special requirements...

When a chemical spills in the environment, it's important to know how quickly the spill will spread. If a farmer irrigates a crop, the person will need to know how fast the water should move through the soil and be absorbed by the roots. In both cases, a good understanding of water pore structure is necessary.

Researchers at the University of Oregon have uncovered a molecular mechanism by which the human stomach pathogen Helicobacter pylori is attracted to bleach, also known as hypochlorous acid or HOCI. The study revealed that H. pylori uses a protein called TlpD to sense bleach and swim toward it, and that the bacteria Salmonella enterica and Escherichia coli can use TlpD-like proteins to detect...

The Christian church can provide an important social support community for international college students in the United States, according to researchers at Penn State. Specifically, the team found that the church also may help to provide culturally sensitive counseling to international students. The team focused its investigation on Chinese international students.

Researchers have developed the first fully-integrated, non-dispersive infrared (NDIR) gas sensor enabled by specially engineered synthetic materials known as metamaterials. The sensor has no moving parts, requires little energy to operate and is among the smallest NDIR sensors ever created.

Thousands of marine species could be at risk if a new United Nations high-seas biodiversity treaty, now being negotiated in New York, does not include measures to address the management of all fish species in international waters, not just the commercial species, warns an analysis by American, Dutch, Swiss and French researchers.

Former tropical depression Erin has made the transition into an extra-tropical system off the eastern coast of the U.S. Infrared imagery from NASA's Aqua satellite provided temperature data on storms associated with Erin and the weather system it is merging with.

Mathematical modeling suggests that the diversity of interactions between species in an ecological community plays a greater role in maintaining community functioning than previously thought. Vincent Miele of the CNRS in Lyon, France, and colleagues present these findings in PLOS Computational Biology.

Scientists have mapped the DNA of bacteria found within a chronic disease affecting grapevines, a feat they hope will ultimately help protect the multibillion-dollar grape industry that produces juice, jelly, wine and other important products.

Hurricane Dorian is packing heavy rain as it moves toward the Bahamas as predicted by NOAA's NHC or National Hurricane Center. NASA analyzed the storm and found heavy rainfall in the storm.

NASA's Aqua satellite passed over the South China Sea and provided forecasters with a visible image of Tropical Storm Podul as it moved closer to the coast of north and central Vietnam where it is expected to make landfall on August 29.

A day is the time for Earth to make one complete rotation on its axis, a year is the time for Earth to make one revolution around the Sun—reminders that basic units of time and periods on Earth are intimately linked to our planet's motion in space relative to the Sun. In fact, we mostly live our lives to the rhythm of these astronomical cycles.

Humans' ability to transform the natural environment is often considered a modern phenomenon, from increasing deforestation, soil erosion and greenhouse gas emissions. This year, an international group of geologists deemed the start of the Anthropocene—the time of humans' most far-reaching effects on the Earth—to be the middle of the 20th century.

Stone tools and other artifacts unearthed from an archeological dig at the Cooper's Ferry site in western Idaho suggest that people lived in the area 16,000 years ago, more than a thousand years earlier than scientists previously thought.

Mindful of President Donald Trump's intense interest in space, the Pentagon is declaring U.S. Space Command open for business as part of a broader effort to better defend American interests in space.

This animated flyover of each of the four candidate sample collection sites on asteroid Bennu, selected by NASA's OSIRIS-REx asteroid sample return mission, was produced using close-range data from the OSIRIS-REx Laser Altimeter (OLA), an instrument contributed by the Canadian Space Agency. It illustrates the location of each site on Bennu, the topography of each site, and the potential sampling...

Biologists at Columbia University Vagelos College of Physicians and Surgeons have leveraged a computational method to map protein-protein interactions between all known human-infecting viruses and the cells they infect. The method, along with the data that it generated, has generated a wealth of information about how viruses manipulate the cells that they infect and cause disease. Among the...

A 60-day ban on burning in Brazil takes effect Thursday after a global outcry over fires raging in the Amazon and data showing hundreds of new blazes in the rainforest.

According to the Intergovernmental Panel on Climate Change (IPCC), addressing carbon emissions from our food sector is absolutely essential to combatting climate change. While land and agriculture took center stage in the panel's most recent report, missing was how the oceans at large could help in that fight.

Polish authorities on Thursday were warning residents in cities along the Vistula river that runs into the Baltic Sea of a "crisis" situation after Warsaw's new sewage collection plant malfunctioned.

Titanium oxide (TiO2) nanofibers can have various applications, such as in catalyzers and filters. When TiO2 is excited by ultraviolet light, it degrades organic material. Hence, TiO2 can be applied to filter wastewater for reuse, for example.

A Congolese bishop says an "ecological disaster" is unfolding in the southeast of the Democratic Republic of Congo as illegal logging destined for Chinese buyers is threatening the rare mukula tree.

In one of the most inhospitable places on Earth, the southernmost part of Chile's Patagonia region, scientists are studying whales, dolphins and algae in order to help predict how climate change will affect the world's oceans.