Current Ozone Layer News and Events

Current Ozone Layer News and Events, Ozone Layer News Articles.
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Life from Earth could temporarily survive on Mars
German Aerospace Center scientists. The researchers launched these small lifeforms into Earth's stratosphere, which replicates key characteristics of the Martian environment, and found that some microorganisms, in particular spores of black mold, survived the trip. This new way of testing endurance to space travel will be invaluable for understanding the threats and opportunities of microbes in future missions to Mars. (2021-02-22)

Long-term exposure to low levels of air pollution increases risk of heart and lung disease
Analysis of records for more than 63 million Medicare enrollees from 2000 to 2016 finds long-term exposure to air pollution had a significant impact on the number of people hospitalized for cardiac and respiratory conditions. Researchers examined three components of air pollution: fine particulate matter, nitrogen dioxide and ozone. Even levels lower than national standards affected heart and respiratory illnesses. (2021-02-22)

42,000-year-old trees allow more accurate analysis of last Earth's magnetic field reversal
The last complete reversal of the Earth's magnetic field, the so-called Laschamps event, took place 42,000 years ago. Radiocarbon analyses of the remains of kauri trees from New Zealand now make it possible for the first time to precisely time and analyse this event and its associated effects, as well as to calibrate geological archives such as sediment and ice cores from this period. Simulations based on this show considerable effects in the Earth's atmosphere. (2021-02-19)

Magnetic reversal 42,000 years ago triggered global environmental change
Nearly 42,000 years ago, when Earth's magnetic fields reversed, this triggered major environmental changes, extinction events, and long-term changes in human behavior, a new study reports. (2021-02-18)

Researchers have proved that that ozone is effective in disinfecting Coronavirus
It is possible to destroy the virus within minutes by gaseous ozone, which can be produced synthetically indoors. The advantage of gaseous ozone over liquid disinfectants (such as alcohol and bleach) is its ability to treat entire rooms, including all objects found in it and hard-to-reach locations. (2021-02-17)

NASA-funded network tracks the recent rise and fall of ozone depleting pollutants
A short-lived resurgence in the emission of ozone depleting pollutants in eastern China will not significantly delay the recovery of Earth's protective 'sunscreen' layer, according to new research published Feb. 10 in Nature. (2021-02-17)

Solution to puzzling phenomenon may open door to improved Cold Spray efficiency
An international team of researchers has solved a puzzling phenomenon whereby strangely beautiful, vortex-like structures appear between materials deposited onto engineering components used in multiple settings - from space shuttles to household items and everyday transport vehicles The discovery may ultimately improve the efficiency of the ''Cold Spray'' (CS) deposition process from which these structures are formed - a not-insignificant financial or functional consideration. (2021-02-16)

Biodegradable microcapsules deliver nerve growth factor to guide neuronal development
Researchers from Skoltech and their colleagues have demonstrated that nanoengineered biodegradable microcapsules can guide the development of hippocampal neurons in an in vitro experiment. The microcapsules deliver nerve growth factor, a peptide necessary for neuron growth. (2021-02-16)

The vertical evolution of volatile organic compounds vary between winter and summer
Scientists have discovered that pollution concentration varies between seasons. A new study, conducted in the North China Plain, determined where volatile organic compounds (VOCs) are distributed within the vertical layers of the atmosphere, and found notable changes from winter to summer. (2021-02-15)

Increasing hurricane intensity around Bermuda linked to rising ocean temperatures
New research shows that hurricane maximum wind speeds in the subtropical Atlantic around Bermuda have more than doubled on average over the last 60 years due to rising ocean temperatures in the region. (2021-02-12)

Scientists discovered new physical effects important for the ITER reactor operation
The energy of the future lies in the area of the controlled thermonuclear fusion. Researchers discovered new effects, which affect the energy flow in the reactor. The theoretical predictions were confirmed by the experiments on two tokamaks. The research results were published in the scientific journal 'Plasma Physics and Controlled Fusion'. (2021-02-11)

Vibrating 2D materials
Two-dimensional materials hold out hope for many technical applications. An international research team now has determined for the first time how strongly 2D materials vibrate when electronically excited with light. (2021-02-11)

Emissions of banned ozone-depleting substance back on decline
After a mysterious and sharp increase between 2012 and 2017 that could be traced to eastern China global emissions of a potent (and banned) substance notorious for depleting the Earth's ozone layer - the protective barrier that absorbs the Sun's harmful UV rays - have fallen rapidly in recent years and are now as low as never before since measurements began in this region in 2008, according to new atmospheric analyses published in Nature today. (2021-02-11)

Combination of pine scent and ozone as super source of particulate emissions
Scientists have managed to figure out why conifer forests produce so many fine particles into the atmosphere. Aerosol particles are particularly abundant when ?-pinene, the molecule responsible for the characteristic pattern of pine trees reacts with atmospheric ozone. (2021-02-11)

Research shows emissions of banned ozone-depleting substance are back on the decline
Global emissions of a potent substance notorious for depleting the Earth's ozone layer -- the protective barrier which absorbs the Sun's harmful UV rays -- have fallen rapidly and are now back on the decline, according to new research. (2021-02-10)

Reductions in CFC-11 emissions put ozone recovery back on track
An international research team, including scientists from MIT, have observed a global reduction of the banned ozone-depleting chemical CFC-11, after it spiked unexpectedly several years ago. (2021-02-10)

Scientists create armour for fragile quantum technology
An ANU-led international team has invented the equivalent of 'body armour' for extremely fragile quantum systems, which will make them robust enough to be used as the basis for a new generation of low-energy electronics. (2021-02-08)

New research reveals drivers of regionally different ozone responses to the COVID-19
Professor Ding Aijun explored global air-quality changes during COVID-19 lockdowns and regional disparities in O3 responses to emission reductions. They integrated multiple observational datasets, including global air quality monitoring network and satellite retrievals, to shed more light on the regional differences in interactions between emissions, atmospheric chemistry, and meteorological conditions. (2021-02-07)

Silicon anode structure generates new potential for lithium-ion batteries
New research has identified a nanostructure that improves the anode in lithium-ion batteries. Instead of using graphite for the anode, the researchers turned to silicon: a material that stores more charge but is susceptible to fracturing. The team deposited silicon atoms on top of metallic nanoparticles to form an arched nanostructure, increasing the strength and structural integrity of the anode. Electrochemical tests showed the batteries had a higher charge capacity and longer lifespan. (2021-02-05)

Sensor and detoxifier in one
Ozone is a problematic air pollutant that causes serious health problems. A newly developed material not only quickly and selectively indicates the presence of ozone, but also simultaneously renders the gas harmless. As reported by Chinese researchers in Angewandte Chemie, the porous '2-in-one systems' also function reliably in very humid air. (2021-02-05)

Harvard scientists use trilayer graphene to observe more robust superconductivity
Harvard scientists report successfully stacking three sheets of graphene and then twisting each of them at a magic angle to produce a three-layered structure that is not only capable of superconductivity but does so more robustly and at higher temperatures than many of the double-stacked graphene. (2021-02-04)

3D-printed bioresorbable airway stent
An ETH Zurich research team is using 3D printing to produce a new type of bioresorbable airway stent. This could greatly simplify the future treatment of upper airway obstruction. (2021-02-03)

Dynamic 3D printing process features a light-driven twist
The speed of light has come to 3D printing. Northwestern University engineers have developed a new method that uses light to improve 3D printing speed and precision while also, in combination with a high-precision robot arm, providing the freedom to move, rotate or dilate each layer as the structure is being built. The method introduces the 'on-the-fly' ability to manipulate the original design layer by layer and pivot the printing direction without recreating the model. (2021-02-03)

Stopping intestinal bacteria in their tracks
POSTECH Professor Seung-Woo Lee's research team identifies the mechanism behind the differentiation of intestinal epithelial lymphocytes. (2021-02-03)

Fine tuned: adjusting the composition and properties of semiconducting 2D alloys
Semiconducting 2D alloys could be key to overcoming the technical limitations of modern electronics. Although 2D Si-Ge alloys would have interesting properties for this purpose, they were only predicted theoretically. Now, scientists from Japan Advanced Institute of Science and Technology have realized the first experimental demonstration. They have also shown that the Si to Ge ratio can be adjusted to fine tune the electronic properties of the alloys, paving the way for novel applications. (2021-02-02)

Biosensors require robust antifouling protection
Some promising biosensors and medical devices work well within pristine laboratory environments but may stop working once exposed to real-world conditions. A thick layer of foulants will quickly cover biosensors, and there is no good way to revive them once they quit working. Essentially, a biosensor is only as good as its antifouling properties. In APL Materials, researchers review a variety of approaches developed to combat fouling. (2021-02-02)

UBC study highlights the best style and fabrics for COVID-19 face masks
In the race to stop the spread of COVID-19, a three-layer cloth mask that fits well can effectively filter COVID particles, says a group of UBC researchers. After testing several different mask styles and 41 types of fabrics, they found that a mask consisting of two layers of low-thread-count quilting cotton plus a three-ply dried baby wipe filter was as effective as a commercial non-surgical mask at stopping particles--and almost as breathable. (2021-02-02)

Extreme UV laser shows generation of atmospheric pollutant
Hokkaido University scientists show that under laboratory conditions, ultraviolet light reacts with nitrophenol to produce smog-generating nitrous acid. (2021-02-02)

Unmatched dust storms raged over Western Europe during Ice age maximum
Huge dust storms swirled across the bare and frozen landscapes of Europe during the coldest periods of the latest ice age. The tempests, which we seldom see the equal of today, frequently covered Western Europe in the thickest layers of ice-age dust studied anywhere on Earth. (2021-02-01)

Improved model estimates impact of ozone on soy crops
The impact of ozone on soybean production can be predicted more accurately thanks to improvements to a computer modelling system. (2021-02-01)

Skoltech imaging resources used in international experiment with new photocatalysts
Skoltech researchers helped their colleagues from Japan, Germany, the United States, and China study the crystal structure and optical properties of a new class of two-dimensional compounds, which can be used as effective visible-light-responsive photocatalysts for energy and chemical conversion. They used the Advanced Imaging Core Facility equipment for imaging and structural analysis. (2021-02-01)

Marine heatwaves becoming more intense, more frequent
When thick, the surface layer of the ocean acts as a buffer to extreme marine heating--but a new study from the University of Colorado Boulder shows this ''mixed layer'' is becoming shallower each year. The thinner it becomes, the easier it is to warm. The new work could explain recent extreme marine heatwaves, and point at a future of more frequent and destructive ocean warming events as global temperatures continue to climb. (2021-01-28)

Scientists develop perovskite solar modules with greater size, power and stability
Researchers from the Okinawa Institute of Science and Technology Graduate University (OIST) have created perovskite solar modules with improved stability and efficiency by using a new fabrication technique that reduced defects. Their findings were published on the 25th January in Advanced Energy Materials. (2021-01-27)

Solar hydrogen: Photoanodes made of alpha-SnWO4 promise high efficiencies
Photoanodes made of metal oxides are considered to be a viable solution for the production of hydrogen with sunlight. Alpha-SnWO4 has optimal electronic properties for photoelectrochemical water splitting with sunlight, but corrodes easily. Protective layers of nickel oxide prevent corrosion, but reduce the photovoltage and limit the efficiency. Now a team at HZB has investigated at BESSY II what happens at the interface between the photoanode and the protective layer. (2021-01-26)

First comprehensive LCA shows reprocessed medical devices cut GHG emissions in half
Hospitals could cut emissions associated with some medical device use in half by opting instead for reprocessed 'single-use' medical devices. The LCA evaluated the use of a remanufactured electrophysiology catheter compared with the use of original catheters for 16 different environmental impact categories and found that the use of reprocessed devices was superior in 13 categories. (2021-01-25)

Microstructured optical fibers find their 3D-printed groove
Advanced laser-printing techniques prove ideal for creating tiny optical communication devices with complex internal structures. (2021-01-25)

Reactive halogen from domestic coal burning aggravates winter air pollution
During the winter in the North China Plain, scientists found high concentrations of reactive halogen gases (BrCl, HOBr, Cl2) in the atmosphere which was associated with widespread coal burning in rural areas. Halogen atoms released from BrCl and Cl2 under sunlight significantly increased the oxidative capacity, and has the potential to boost the productions of secondary aerosols - the major components of winter haze in northern China - and the toxic form of mercury. (2021-01-25)

Targeted coating improves graphene oxide membranes for nanofiltration
A research group led by Prof. WAN Yinhua from the Institute of Process Engineering (IPE) of the Chinese Academy of Sciences developed a stable graphene oxide nanofiltration membrane with uniform pore size to remove organic micropollutants. (2021-01-22)

Magnetic waves explain mystery of Sun's outer layer
in a new study published in The Astrophysical Journal, researchers combined observations from a telescope in New Mexico, the United States, with satellites located near Earth to identify a link between magnetic waves in the chromosphere and areas of abundant ionised particles in the hot outer atmosphere. (2021-01-22)

Researchers make domestic high-performance bipolar membranes possible
A team led by Prof. XU Tongwen and Prof WU Liang from the University of Science and Technology of China (USTC) of the Chinese Academy of Sciences (CAS) adopted an in-situ growth idea to construct a stable and efficient membrane (2021-01-21)

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