Showing 20 articles starting at article 1121

< Previous 20 articles        Next 20 articles >

Categories: Ecology: Extinction, Environmental: General

Return to the site home page

Environmental: General Environmental: Water Geoscience: Environmental Issues
Published

Clarity needed for businesses to achieve greenhouse gas mitigation      (via sciencedaily.com)     Original source 

Despite efforts to mitigate the effects of climate change, companies are not set up for success, due to conflicting national and sectorial targets and differing availability of abatement options, a new study reveals.

Biology: Biochemistry Ecology: Nature Environmental: Ecosystems Environmental: General Environmental: Water Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry
Published

New study sheds new light on forests' role in climate and water cycle      (via sciencedaily.com)     Original source 

Forests, which cover a third of Earth's land surface, are pivotal in carbon storage and the water cycle, though the full scope of their impact remains to be fully understood. In a new study, researchers provide new insights into the complex role forests play in the climate system and water cycle.

Biology: Botany Biology: Cell Biology Chemistry: General Energy: Fossil Fuels Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Geochemistry
Published

Inexpensive, carbon-neutral biofuels are finally possible      (via sciencedaily.com)     Original source 

When it comes to making fuel from plants, the first step has always been the hardest -- breaking down the plant matter. A new study finds that introducing a simple, renewable chemical to the pretreatment step can finally make next-generation biofuel production both cost-effective and carbon neutral.

Chemistry: General Engineering: Robotics Research Environmental: General Geoscience: Environmental Issues Geoscience: Geochemistry
Published

3D printed nanocellulose upscaled for green architectural applications      (via sciencedaily.com)     Original source 

For the first time, a hydrogel material made of nanocellulose and algae has been tested as an alternative, greener architectural material. The study shows how the abundant sustainable material can be 3D printed into a wide array of architectural components, using much less energy than conventional construction methods.

Energy: Nuclear Environmental: General Geoscience: Earthquakes
Published

New method to more accurately spot underground nuclear tests      (via sciencedaily.com)     Original source 

A more accurate way of identifying underground nuclear tests, including those conducted in secret, has been developed.

Environmental: General Geoscience: Geochemistry
Published

MXene-coated devices can guide microwaves in space and lighten the payload      (via sciencedaily.com)     Original source 

One of the most important components of satellites that enable telecommunication is the waveguide, which is a metal tube for guiding radio waves. It is also one of the heaviest payloads satellites carry into orbit. As with all space technology, reducing weight means reducing the amount of expensive and greenhouse gas-producing fuel it takes to launch a rocket, or increasing the number of devices carried by the same rocket to space. Researchers are trying to lighten the load by creating and testing a waveguide made from 3D-printed polymers coated with a conductive nanomaterial called MXene.

Energy: Fossil Fuels Energy: Technology Environmental: General Geoscience: Environmental Issues
Published

Japan's electric vehicle transition by 2035 may be insufficient to combat the climate crisis, but there are solutions      (via sciencedaily.com)     Original source 

Researchers report that Japan's policy of banning the sale of new gas vehicles by 2035 may be insufficient to reduce the country's CO2 emissions. The team's analysis showed that to effectively reach their climate goals, Japan must also implement policies that extend vehicle lifetime, implement more renewable energy into its energy sector, and decarbonize the manufacturing process of vehicles.

Energy: Technology Environmental: General
Published

New study finds 'sweet spot' for length of yarn-shaped supercapacitors      (via sciencedaily.com)     Original source 

Researchers have identified a 'sweet spot' at which the length of a threadlike energy storage technology called a 'yarn-shaped supercapacitor' (YSC) yields the highest and most efficient flow of energy per unit length.

Chemistry: General Chemistry: Inorganic Chemistry Engineering: Nanotechnology Environmental: General Geoscience: Environmental Issues Geoscience: Geochemistry
Published

Researchers reveal elusive bottleneck holding back global effort to convert carbon dioxide waste into usable products      (via sciencedaily.com)     Original source 

Think of it as recycling on the nanoscale: a tantalizing electrochemical process that can harvest carbon before it becomes air pollution and restructure it into the components of everyday products. The drive to capture airborne carbon dioxide from industrial waste and make it into fuel and plastics is gaining momentum after a team of researchers uncovered precisely how the process works and where it bogs down.

Biology: Biochemistry Biology: General Ecology: General Ecology: Nature Ecology: Research Ecology: Trees Environmental: Ecosystems Environmental: General
Published

Complex tree canopies help forests recover from moderate-severity disturbances      (via sciencedaily.com)     Original source 

Extreme events wipe out entire forests, dramatically eliminating complex ecosystems as well as local communities. Researchers have become quite familiar with such attention-grabbing events over the years. They know less, however, about the more common moderate-severity disturbances, such as relatively small fires, ice storms, and outbreaks of pests or pathogens.

Environmental: Ecosystems Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Geography Geoscience: Severe Weather
Published

New study points to more climate extremes      (via sciencedaily.com)     Original source 

A new study has found similarities between long-term climatic changes in South Australia and temperate agricultural areas in Argentina -- highlighting similarities across these Southern Hemisphere countries. As temperature records tumble, and the threat of bushfires and dry conditions looms large, researchers renew the urgency of calls to make more concerted efforts to prepare for climate extremes in South Australia.

Anthropology: Cultures Anthropology: Early Humans Anthropology: General Archaeology: General Environmental: General
Published

Thailand's Iron Age Log Coffin culture      (via sciencedaily.com)     Original source 

A mortuary practice known as Log Coffin culture characterizes the Iron Age of highland Pang Mapha in northwestern Thailand. Between 2,300 and 1,000 years ago, individuals were buried in large wooden coffins on stilts, mostly found in caves and rock shelters.

Chemistry: Biochemistry Chemistry: Organic Chemistry Energy: Alternative Fuels Energy: Batteries Energy: Fossil Fuels Environmental: General Geoscience: Environmental Issues
Published

Improving fuel cell durability with fatigue-resistant membranes      (via sciencedaily.com)     Original source 

In hydrogen fuel cells, electrolyte membranes frequently undergo deformation and develop cracks during operation. A research team has recently introduced a fatigue-resistant polymer electrolyte membrane for hydrogen fuel cells, employing an interpenetrating network of Nafion (a plastic electrolyte) and perfluoropolyether (a rubbery polymer). This innovation will not only improve fuel cell vehicles but also promises advancements in diverse technologies beyond transportation, spanning applications from drones to desalination filters and backup power sources.

Biology: Biochemistry Biology: Botany Biology: Cell Biology Biology: General Biology: Microbiology Ecology: Endangered Species Environmental: General Geoscience: Environmental Issues Geoscience: Geochemistry
Published

How plants obtain nitrogen by supplying iron to symbiotic bacteria      (via sciencedaily.com)     Original source 

Researchers have discovered peptide factors that function in the shoot and root systems to transport iron into the root nodules colonized by nitrogen-fixing bacteria. Moreover, these peptide factors regulate nitrogen homeostasis by maintaining a balance between nitrogen and iron concentrations in plants without rhizobial symbiosis.

Chemistry: General Energy: Alternative Fuels Energy: Fossil Fuels Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Geochemistry
Published

Ammonia attracts the shipping industry, but researchers warn of its risks      (via sciencedaily.com)     Original source 

Switching to ammonia as a marine fuel, with the goal of decarbonization, can instead create entirely new problems. This is shown in a study where researchers carried out life cycle analyses for batteries and for three electrofuels including ammonia. Eutrophication and acidification are some of the environmental problems that can be traced to the use of ammonia -- as well as emissions of laughing gas, which is a very potent greenhouse gas.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: General Biology: Microbiology Chemistry: Biochemistry Energy: Technology Environmental: Ecosystems Environmental: General
Published

Microbial division of labor produces higher biofuel yields      (via sciencedaily.com)     Original source 

Scientists have found a way to boost ethanol production via yeast fermentation, a standard method for converting plant sugars into biofuels. Their approach relies on careful timing and a tight division of labor among synthetic yeast strains to yield more ethanol per unit of plant sugars than previous approaches have achieved.

Environmental: Ecosystems Environmental: General Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geography Geoscience: Geology Geoscience: Oceanography
Published

Study challenges the classical view of the origin of the Antarctic Circumpolar Current and warns of its vulnerability      (via sciencedaily.com)     Original source 

The Circumpolar Current works as a regulator of the planet's climate. Its origins were thought to have caused the formation of the permanent ice in Antarctica about 34 million years ago. Now, a study has cast doubt on this theory, and has changed the understanding of how the ice sheet in Antarctic developed in the past, and what this could mean in the future as the planet's climate changes.