Degradable polyethylene plastics from the nonalternating terpolymerization of ethylene, CO, and polar monomers
In a study published in the journal National Science Review and led by Dr. Zhongbao Jian (State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, CAS), E/CO/PM terpolymerizations were carried out with seven p.....»»
Polar jet stream could reveal Saturn"s rotational period
A hexagon-shaped atmospheric phenomenon first spotted on Saturn by Voyager 1 and Voyager 2 has intrigued scientists since the 1980s. More recently, NASA's Cassini mission has periodically observed the hexagon and its embedded strong eastward jet that.....»»
Astronomers investigate the nature of a fast-spinning intermediate polar
Using various X-ray space observatories, astronomers from Columbia University in New York and elsewhere have investigated CTCV J2056–3014—an intermediate polar containing one of the fastest-spinning white dwarfs. Results of the study, published S.....»»
New polymer design breaks the tradeoff between toughness and recyclability
Plastics underpin much of modern life—areas like medicine, technology, and food safety would be unrecognizable without plastics and their useful properties. However, the toughness of plastics, which is often desirable, also makes them a dangerous p.....»»
Mathematicians and climate researchers build new models for understanding polar sea ice
Polar sea ice is ever-changing. It shrinks, expands, moves, breaks apart, reforms in response to changing seasons, and rapid climate change. It is far from a homogenous layer of frozen water on the ocean's surface, but rather a dynamic mix of water a.....»»
Wastewater bacteria can break down plastic for food, yielding new possibilities for cleaning up plastic waste
Researchers have long observed that a common family of environmental bacteria, Comamonadacae, grow on plastics littered throughout urban rivers and wastewater systems. But exactly what these Comamonas bacteria are doing has remained a mystery......»»
Bacteria-derived enzyme shows potential for polyethylene biodegradation
Every year, 400 million tons of plastic products are produced worldwide, half of which are single-use items discarded within a year. In particular, non-biodegradable plastic waste, which takes over 500 years to decompose naturally, is mostly treated.....»»
Scientists highlight overlooked threats to Arctic coasts amid climate change
As climate change rapidly transforms Arctic marine systems, the dramatic image of a polar bear struggling on a melting ice floe has become symbolic of the region's environmental crisis. But scientists argue that coastal Arctic ecosystems are undergoi.....»»
Researchers use carbon nanotube derivatives to strengthen recyclable plastics
Reducing the environmental impact caused by plastics can be addressed through different strategies, such as the manufacture of more durable plastics or recycling. In general, there are two main types of plastics. The first is thermoplastics, which ca.....»»
Citizen scientists help discover microplastics along the entire German coastline
The global production of plastics and the resulting plastic waste has increased to such an extent that plastics have become ubiquitous in our environment. Plastics of various sizes are also found along the German North Sea and Baltic coasts......»»
In the gateway to the Arctic, fat, ice and polar bears are crucial. All three are in trouble.
Searching for polar bears where the Churchill River dumps into Canada's massive Hudson Bay, biologist Geoff York scans a region that's on a low fat, low ice diet because of climate change......»»
Extreme polar light environment of the North and South Poles sustains biodiversity, researchers suggest
Researchers working in Finland propose that the unique light environment of the Earth's polar regions creates conditions that result in circumpolar hybrid zones around the North and the South Poles. These extreme conditions increase the synchrony of.....»»
First polar bear spotted in Iceland since 2016 is shot dead by police
A polar bear was spotted in Iceland for the first time since 2016—and was promptly shot dead by police......»»
"Convergence" growing on global plastics treaty: UN environment chief
The UN environment chief said Sunday she was beginning to see convergence on the world's first binding treaty on plastic pollution despite differences on production caps and a tax-like plastic fee......»»
Vaporizing plastics recycles them into nothing but gas
Polypropylene and polyethylene can be broken down simultaneously. Enlarge (credit: Derek Berwin) Our planet is choking on plastics. Some of the worst offenders, which can take decades to degrade in landfills, are polypro.....»»
How to prepare for a stormy "supercharged" September
The effects of climate change have become an ominous presence in our lives, and the dramatic media monikers that accompany them—bomb cyclones, atmospheric rivers, thundersnow, black swan events, heat domes, polar vortexes—sound almost biblical......»»
Low-noise amplifiers aboard the Arctic Weather Satellite
The Arctic Weather Satellite (AWS) of the European Space Agency (ESA) was sent on its journey to a polar orbit 600 km above the Earth on August 16, 2024. On board: four low-noise amplifiers (LNAs) from the Fraunhofer Institute for Applied Solid State.....»»
Plastics: navigating the maze of dizzying acronyms
Plastics are all around us—from food packaging and drinking bottles to the insulation in our homes......»»
Team develops new tool to map fossil fuel emissions from space
University of Minnesota researchers have developed a new tool to measure ethane from space, leading to a better understanding of fossil fuel emissions worldwide. Ethane is commonly found in natural gas and is primarily used in plastics manufacturing......»»
9 phenomena NASA astronauts will encounter at Moon"s south pole
NASA's Artemis campaign will send the first woman and the first person of color to the moon's south polar region, marking humanity's first return to the lunar surface in more than 50 years......»»
Zeolite catalyst method uses microwaves to convert waste cooking oil into useful chemicals
Researchers from Kyushu University have revealed that a zeolite material called Na-ZSM-5 is effective in improving the chemical conversion of biomass into olefins—a precursor chemical that makes everything from plastics to pharmaceuticals—using m.....»»