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April 15, 2021 | https://www.sciencedaily.com/releases/2021/04/210415114202.htm | Impacts of coronavirus lockdowns: New study collects data on pollutants in the atmosphere | One consequence of the coronavirus pandemic has been global restrictions on mobility. This, in turn, has had an effect on pollution levels in the atmosphere. Researchers from across the world are using this unique opportunity to take measurements, collect data, and publish studies. An international team led by Forschun... | The meta-analysis was coordinated by Prof. Astrid Kiendler-Scharr, director at Jülich's Institute of Climate and Energy Research -- Troposphere. The analysis covers the measurement data of around 200 studies from the first seven months following the onset of the pandemic. It focuses on the following air pollutants: nit... | Ozone Holes | 2,021 |
April 5, 2021 | https://www.sciencedaily.com/releases/2021/04/210405123308.htm | Ozone pollution harms maize crops, study finds | Although stratospheric ozone protects us by filtering out the sun's ultraviolet radiation, tropospheric ozone is a harmful pollutant. A new study has shown that ozone in the lower layers of the atmosphere decreases crop yields in maize and changes the types of chemicals that are found inside the leaves. | Ozone is formed when nitrous oxide, released from industries and tail pipes of cars, is broken down by sunlight and chemically reacts to form ozone. Researchers at the University of Illinois Urbana-Champaign have been studying the effects of ozone pollution on crops for over 20 years at a unique facility where crops ca... | Ozone Holes | 2,021 |
December 2, 2020 | https://www.sciencedaily.com/releases/2020/12/201202114540.htm | Ozone breaks down THC deposited on surfaces from thirdhand cannabis smoke | Second- and thirdhand tobacco smoke have received lots of attention, but much less is known about the compounds deposited on surfaces from cannabis smoke. Now, researchers reporting in ACS' | Smoking emits reactive chemicals that remain in the air (so-called secondhand smoke) or deposit onto surfaces, including walls, windows, clothing and upholstery (thirdhand smoke). Unlike the secondhand variety, thirdhand smoke lingers long after a person stops smoking. Nicotine is semi-volatile and reacts with other ch... | Ozone Holes | 2,020 |
November 23, 2020 | https://www.sciencedaily.com/releases/2020/11/201123120730.htm | Shift in atmospheric rivers could affect Antarctic sea ice, glaciers | Weather systems responsible for transporting moisture from the tropics to temperate regions in the Southern Hemisphere have been gradually shifting toward the South Pole for the past 40 years, a trend which could lead to increased rates of ice melt in Antarctica, according to new research. | Atmospheric rivers are long, narrow jets of air that carry huge amounts of water vapor from the tropics to Earth's continents and polar regions. The new study finds atmospheric rivers in the Southern Hemisphere are shifting due in part to ozone depletion, greenhouse gas emissions and natural variations in sea surface t... | Ozone Holes | 2,020 |
September 24, 2020 | https://www.sciencedaily.com/releases/2020/09/200924082709.htm | Climate pledges 'like tackling COVID-19 without social distancing' | Current global pledges to tackle climate change are the equivalent of declaring a pandemic without a plan for social distancing, researchers say. | In the Paris Agreement, nations agreed to limit global warming to "well below 2°C."But University of Exeter scientists say governments are engaged in "climate hypocrisy" by publicly supporting the agreement while subsidising the fossil fuel industry, destroying forests and pursuing other harmful policies.Writing in the... | Ozone Holes | 2,020 |
September 21, 2020 | https://www.sciencedaily.com/releases/2020/09/200921130640.htm | Unexpected wildfire emission impacts air quality worldwide | In lab studies of wildfire, nitrous acid seems like a minor actor, often underrepresented in atmospheric models. But in the real-world atmosphere, during wildfires, the chemical plays a leading role -- spiking to levels significantly higher than scientists expected, driving increased ozone pollution and harming air qua... | "We found nitrous acid levels in wildfire plumes worldwide are two to four times higher than expected," said Rainer Volkamer, CIRES Fellow, professor of chemistry at CU Boulder and co-lead author on the Nitrous acid in wildfire smoke is accelerating the formation of an oxidant, the hydroxyl radical or OH. Unexpectedly,... | Ozone Holes | 2,020 |
September 8, 2020 | https://www.sciencedaily.com/releases/2020/09/200908131032.htm | Detecting soil-surface ozone early can help prevent damage to grapes and apples | Farmers and fruit growers are reporting that climate change is leading to increased ozone concentrations on the soil surface in their fields and orchards -- an exposure that can cause irreversible plant damage, reduce crop yields and threaten the food supply, say materials chemists led by Trisha Andrew at the Universit... | Writing in They write, "We selected grapes (Vitis vinifera L.) as our model plant because the fruit yield and fruit quality of grapevines decrease significantly upon exposure to ground level ozone, leading to significant economic losses." Ground-level ozone can be produced by the interaction between the nitrates in fer... | Ozone Holes | 2,020 |
September 4, 2020 | https://www.sciencedaily.com/releases/2020/09/200904101806.htm | Pollination: Air pollution renders flower odors unattractive to moths | A team of researchers from the Max Planck Institute for Chemical Ecology in Jena, Germany, and the University of Virginia, USA, has studied the impact of high ozone air pollution on the chemical communication between flowers and pollinators. They showed that tobacco hawkmoths lost attraction to the scent of their prefe... | Pollination is a critical ecosystem service, one that is performed mainly by insects. Flowers attract insects using floral scents, which are chemical signals that the pollinators can have an innate preference for. This preference is the result of the co-evolutionary relationship between flowers and their pollinators th... | Ozone Holes | 2,020 |
August 27, 2020 | https://www.sciencedaily.com/releases/2020/08/200827105911.htm | Forest emissions: A chiral surprise in the rainforest | Forests such as the Amazon rainforest emit huge amounts of biogenic volatile organic compounds (BVOC) into the atmosphere. These compounds impact the physical and chemical properties of the atmosphere and also our climate. The molecules react rapidly with ambient OH radicals and ozone, thereby influencing the oxidation... | Despite the chemical similarity of these chiral pairs, insects and plants can distinguish enantiomeric forms of pheromones and phytochemicals, although little attention has been paid to the mixing ratio of the two separated forms in forests. Previous measurements reported minus α-pinene to be the dominant chiral molecu... | Ozone Holes | 2,020 |
August 26, 2020 | https://www.sciencedaily.com/releases/2020/08/200826083036.htm | Experts reveal major holes in international ozone treaty | A new paper, co-authored by a University of Sussex scientist, has revealed major holes in an international treaty designed to help repair the ozone layer, putting human health at risk and affecting climate. | Evidence amassed by scientists in the 1970s and 1980s showed that the depletion of the ozone layer in the stratosphere was one of the first truly global threats to humanity.Chemicals produced through economic activity were slowly drifting to the upper atmosphere where they were destroying the ozone layer, which plays a... | Ozone Holes | 2,020 |
August 21, 2020 | https://www.sciencedaily.com/releases/2020/08/200821141311.htm | Ozone across northern hemisphere increased over past 20 years | In a first-ever study using ozone data collected by commercial aircraft, researchers from the Cooperative Institute for Research in Environmental Sciences (CIRES) at the University of Colorado Boulder found that levels of the pollutant in the lowest part of Earth's atmosphere have increased across the Northern Hemisphe... | Tropospheric ozone -- ozone between Earth's surface and 12 to 15 kilometers above Earth -- is a greenhouse gas and air pollutant that, at high levels, can harm people's lungs and damage plants.In a study published today in the journal Gaudel and her co-authors, CIRES scientists in NOAA and international colleagues, als... | Ozone Holes | 2,020 |
August 18, 2020 | https://www.sciencedaily.com/releases/2020/08/200818142104.htm | Exploding stars may have caused mass extinction on Earth, study shows | Imagine reading by the light of an exploded star, brighter than a full moon -- it might be fun to think about, but this scene is the prelude to a disaster when the radiation devastates life as we know it. Killer cosmic rays from nearby supernovae could be the culprit behind at least one mass extinction event, researche... | A new study led by University of Illinois, Urbana-Champaign astronomy and physics professor Brian Fields explores the possibility that astronomical events were responsible for an extinction event 359 million years ago, at the boundary between the Devonian and Carboniferous periods.The paper is published in the The team... | Ozone Holes | 2,020 |
July 28, 2020 | https://www.sciencedaily.com/releases/2020/07/200727194737.htm | Lockdown saw modest drop in China air pollution, study finds | Large improvements of air quality in China during the COVID-19 lockdown have been widely reported, but new research reveals that the two pollutants most harmful to human health, fine particulate matter (PM2.5) and ozone, were only slightly reduced. | The study, by scientists from the University of Leeds, UK and the Southern University of Science and Technology, China, analysed air pollutant concentrations from China's national network of around 1,300 monitoring stations to quantify the response of air pollution across China during the COVID-19 lockdown.They found t... | Ozone Holes | 2,020 |
July 20, 2020 | https://www.sciencedaily.com/releases/2020/07/200720093238.htm | Geoengineering is just a partial solution to fight climate change | Could we create massive sulfuric acid clouds that limit global warming and help meet the 2015 Paris international climate goals, while reducing unintended impacts? | Yes, in theory, according to a Rutgers co-authored study in the journal But the regional impacts of geoengineering, including on precipitation and the Antarctic ozone layer hole, depend on how much greenhouse gas emissions from humanity are being reduced simultaneously. If carbon dioxide emissions from burning coal, oi... | Ozone Holes | 2,020 |
June 30, 2020 | https://www.sciencedaily.com/releases/2020/06/200630155750.htm | Removing toxic chemicals from water: New environmentally-friendly method | Researchers from Swansea University have developed a new environmentally friendly method for removing toxic chemicals from water. | A newly invented machine, called the Matrix Assembly Cluster Source (MACS), has been used to design a breakthrough water treatment method using a solvent-free approach.The research, from The Institute for Innovative Materials, Processing and Numerical Technologies (IMPACT) within the College of Engineering at Swansea U... | Ozone Holes | 2,020 |
May 27, 2020 | https://www.sciencedaily.com/releases/2020/05/200527150158.htm | Erosion of ozone layer responsible for mass extinction event | Researchers at the University of Southampton have shown that an extinction event 360 million years ago, that killed much of the Earth's plant and freshwater aquatic life, was caused by a brief breakdown of the ozone layer that shields the Earth from damaging ultraviolet (UV) radiation. This is a newly discovered extinc... | There have been a number of mass extinction in the geological past. Only one was caused by an asteroid hitting the Earth, which was 66 million years ago when the dinosaurs became extinct. Three of the others, including the end Permian Great Dying, 252 million years ago, were caused by huge continental scale volcanic er... | Ozone Holes | 2,020 |
May 14, 2020 | https://www.sciencedaily.com/releases/2020/05/200514131712.htm | CFC replacements are a source of persistent organic pollution in the Arctic | Substances used to replace ozone-depleting chlorofluorocarbons (CFCs) may be just as problematic as their predecessors, a new study shows. | In 1987, Canada implemented the Montreal Protocol, a global agreement to protect Earth's ozone layer by ceasing the use of substances like CFCs. Unfortunately, the CFC-replacement substances used to replace them are proving problematic as well, with accumulating levels of their degradation products recently found in th... | Ozone Holes | 2,020 |
May 11, 2020 | https://www.sciencedaily.com/releases/2020/05/200511124444.htm | COVID-19 lockdowns significantly impacting global air quality | Levels of two major air pollutants have been drastically reduced since lockdowns began in response to the COVID-19 pandemic, but a secondary pollutant -- ground-level ozone -- has increased in China, according to new research. | Two new studies in AGU's journal In addition to nitrogen dioxide, one of the new studies finds particulate matter pollution (particles smaller than 2.5 microns) has decreased by 35 percent in northern China. Particulate matter is composed of solid particles and liquid droplets that are small enough to penetrate deep in... | Ozone Holes | 2,020 |
April 21, 2020 | https://www.sciencedaily.com/releases/2020/04/200421090554.htm | Nearly half of US breathing unhealthy air; record-breaking air pollution in nine cities | This year marks the 50th anniversary of the Clean Air Act, which is responsible for dramatic improvements in air quality. Despite this, a new report from the American Lung Association finds nearly half of the nation's population -- 150 million people -- lived with and breathed polluted air, placing their health and liv... | The 2020 "State of the Air" report analyzed data from 2016, 2017 and 2018, the three years with the most recent quality-assured air pollution data. Notably, those three years were among the five hottest recorded in global history. When it comes to air quality, changing climate patterns fuel wildfires and their dangerou... | Ozone Holes | 2,020 |
April 16, 2020 | https://www.sciencedaily.com/releases/2020/04/200416135944.htm | Arctic stratospheric ozone levels hit record low in March | Ozone levels above the Arctic reached a record low for March, NASA researchers report. An analysis of satellite observations show that ozone levels reached their lowest point on March 12 at 205 Dobson units. | While such low levels are rare, they are not unprecedented. Similar low ozone levels occurred in the upper atmosphere, or stratosphere, in 1997 and 2011. In comparison, the lowest March ozone value observed in the Arctic is usually around 240 Dobson units."This year's low Arctic ozone happens about once per decade," sa... | Ozone Holes | 2,020 |
March 25, 2020 | https://www.sciencedaily.com/releases/2020/03/200325120840.htm | International ozone treaty stops changes in Southern Hemisphere winds | Chemicals that deplete Earth's protective ozone layer have also been triggering changes in Southern Hemisphere atmospheric circulation. Now, new research in | "This study adds to growing evidence showing the profound effectiveness of the Montreal Protocol. Not only has the treaty spurred healing of the ozone layer, it's also driving recent changes in Southern Hemisphere air circulation patterns," said lead author Antara Banerjee, a CIRES Visiting Fellow at the University of ... | Ozone Holes | 2,020 |
March 17, 2020 | https://www.sciencedaily.com/releases/2020/03/200317130722.htm | Emissions of several ozone-depleting chemicals are larger than expected | In 2016, scientists at MIT and elsewhere observed the first signs of healing in the Antarctic ozone layer. This environmental milestone was the result of decades of concerted effort by nearly every country in the world, which collectively signed on to the Montreal Protocol. These countries pledged to protect the ozone ... | While the ozone layer is on a recovery path, scientists have found unexpectedly high emissions of CFC-11 and CFC-12, raising the possibility of production of the banned chemicals that could be in violation of the landmark global treaty. Emissions of CFC-11 even showed an uptick around 2013, which has been traced mainly... | Ozone Holes | 2,020 |
March 12, 2020 | https://www.sciencedaily.com/releases/2020/03/200312101033.htm | Can poor air quality make you gain weight? | Breathing dirty air takes a heavy toll on gut bacteria, boosting risk of obesity, diabetes, gastrointestinal disorders and other chronic illnesses, new University of Colorado Boulder research suggests. | The study, published online in the journal The gaseous pollutant ozone, which helps make up Denver's infamous 'brown cloud' -- is particularly hazardous, the study found, with young adults exposed to higher levels of ozone showing less microbial diversity and more of certain species associated with obesity and disease.... | Ozone Holes | 2,020 |
February 5, 2020 | https://www.sciencedaily.com/releases/2020/02/200205084151.htm | Treating wastewater with ozone could convert pharmaceuticals into toxic compounds | With water scarcity intensifying, wastewater treatment and reuse are gaining popularity. But some methods for killing microbes in wastewater create disinfection byproducts (DBPs) that could be harmful to human health. Now researchers have found that ozone treatment and subsequent chlorination can convert trace amounts ... | The combination of ozone and chlorine kills most bacteria and viruses in wastewater. Compared with chlorine treatment alone, ozone also reduces the formation of many DBPs. Recently, however, scientists have discovered that ozone can increase the formation of potentially toxic halonitromethanes, such as chloropicrin, in... | Ozone Holes | 2,020 |
February 4, 2020 | https://www.sciencedaily.com/releases/2020/02/200204112524.htm | All things considered, wooden pallets are more eco-friendly than plastic pallets | Weighing in on a debate that has raged for decades, Penn State researchers, after conducting a series of ultra-detailed comparisons, have declared that shipping pallets made of wood are slightly more environmentally friendly and sustainable than those made of plastic. | "Few people realize the significance of this issue -- there are about 700 million pallets produced and recycled each year in the United States alone," said Chuck Ray, associate professor of ecosystem science and management in the College of Agricultural Sciences. "There are 4 billion pallets in use in this country."Res... | Ozone Holes | 2,020 |
January 27, 2020 | https://www.sciencedaily.com/releases/2020/01/200127134841.htm | Another reason to reduce human-made ozone: To cool a warming planet | While elected officials in the U.S. debate a proposed "Green New Deal" and U.S. President Donald Trump derides "prophets of doom" in Davos, environmental scientists continue to gather evidence about how changes to industry could mitigate the harms of climate change. | In a News and Views article in Felzer writes: "The study [by Nadine Unger et al]...assesses the effect of reducing ozone precursors in seven different economic emission sectors, the most important of which turn out to be energy (electricity and heat production from fossil fuel burning), industry (fossil fuels burned on... | Ozone Holes | 2,020 |
January 27, 2020 | https://www.sciencedaily.com/releases/2020/01/200127134829.htm | Cutting road transport pollution could help plants grow | Cutting emissions of particular gases could improve conditions for plants, allowing them to grow faster and capture more carbon, new research suggests. | A cocktail of gases -- including nitrogen oxides, carbon monoxide, volatile organic compounds and methane -- combines in the atmosphere to form ozone.Ozone at the Earth's surface limits photosynthesis, reducing plants' ability to grow.University of Exeter researchers say cutting emissions of ozone-forming gases offers ... | Ozone Holes | 2,020 |
January 22, 2020 | https://www.sciencedaily.com/releases/2020/01/200122154336.htm | Despite less ozone pollution, not all plants benefit | Breathe easy: Concentrations of ozone in the air have decreased over large parts of the country in the past several decades. | But not too easy.Policies and new technologies have reduced emissions of precursor gases that lead to ozone air pollution, but despite those improvements, the amount of ozone that plants are taking in has not followed the same trend, according to Florida State University researchers. Their findings are published in the... | Ozone Holes | 2,020 |
January 21, 2020 | https://www.sciencedaily.com/releases/2020/01/200121112911.htm | Brazilian wildfire pollution worsens air quality in distant cities | Wildfires in south eastern Brazil produce airborne pollution that worsens air quality in major cities such as Sao Paulo -- cancelling out efforts to improve the urban environment and posing health risks to citizens, according to a new study. | The planet is frequently affected by smoke from fires caused by humans and natural processes. Australia, California and other regions are prone to seasonal wildfires and smoke from wildfires and agricultural burns worsening air quality in places up to 2,000?km away.Most wildfires in Brazil occur in the dry season betwe... | Ozone Holes | 2,020 |
January 13, 2020 | https://www.sciencedaily.com/releases/2020/01/200113153310.htm | Iodine may slow ozone layer recovery | A new paper quantifying small levels of iodine in Earth's stratosphere could help explain why some of the planet's protective ozone layer isn't healing as fast as expected. | The paper posits a set of connections that link air pollution near Earth's surface to ozone destruction much higher in the atmosphere. That higher-level ozone protects the planet's surface from radiation that can cause skin cancer and damage crops."The impact is maybe 1.5 to 2 percent less ozone," said lead author Theo... | Ozone Holes | 2,020 |
January 6, 2020 | https://www.sciencedaily.com/releases/2020/01/200106141445.htm | Shutdown of coal-fired plants in US saves lives and improves crop yields | The decommissioning of coal-fired power plants in the continental United States has reduced nearby pollution and its negative impacts on human health and crop yields, according to a new University of California San Diego study. | The findings published this week in The author, Jennifer Burney, associate professor of environmental science at the UC San Diego School of Global Policy and Strategy, combined data from the Environmental Protection Agency (EPA) on electric power generation with satellite and surface measurements from the EPA as well a... | Ozone Holes | 2,020 |
December 16, 2019 | https://www.sciencedaily.com/releases/2019/12/191216132023.htm | Planetary boundaries: Interactions in Earth system amplify human impacts | What we do to one part of our Earth system does not just add to what we do to other parts: "We found a dense network of interactions between the planetary boundaries," says Johan Rockström, Director of the Potsdam Institute for Climate Impact Research and co-author of the study. Two core boundaries -- climate change an... | Burning down tropical forests to expand agricultural lands for instance increases the amount of CO2 in the atmosphere. The additional greenhouse gases contribute to the global temperature increase, the harm done to the forests becomes harm to climate stability. The temperature increase can in turn further enhance stres... | Ozone Holes | 2,019 |
November 18, 2019 | https://www.sciencedaily.com/releases/2019/11/191118162932.htm | Nitrous oxide, a greenhouse gas, is on the rise | Most of us know nitrous oxide as "laughing gas," used for its anaesthetic effects. But nitrous oxide (N | "We see that the NIncreasing use of nitrogen fertilizers is leading to higher NIn the study, Thompson and scientists including Eric Davidson of the University of the Maryland Center for Environmental Science found that nitrous oxide in the atmosphere has risen steadily since the mid-20th century. This rise is strongly ... | Ozone Holes | 2,019 |
October 29, 2019 | https://www.sciencedaily.com/releases/2019/10/191029131458.htm | New AI deep learning model allows earlier, more accurate ozone warnings | Researchers from the University of Houston have developed an artificial intelligence-based ozone forecasting system, which would allow local areas to predict ozone levels 24 hours in advance. | That would improve health alerts for people at heightened risk of developing problems because of high ozone levels.Yunsoo Choi, associate professor in the Department of Earth and Atmospheric Sciences and corresponding author for a paper explaining the work, said they built an artificially intelligent model using a conv... | Ozone Holes | 2,019 |
October 25, 2019 | https://www.sciencedaily.com/releases/2019/10/191025113017.htm | Energy regulation rollbacks threaten progress against harmful ozone | Pollutants from coal-fired power plants help make ground-level ozone, and a warming world exacerbates that. Recent rollbacks of U.S. energy regulations may speed climate change, keep pollutants coming, and thus slow the fight against harmful ozone, according to a new study to be published Friday. | Currently, 30 percent of the U.S. population lives with ozone levels that exceed government health standards. Though past environmental regulations have vastly helped clean the air and put the U.S. on a positive trajectory to reduce pollutants -- including ozone -- policy rollbacks back could slow the progress then rev... | Ozone Holes | 2,019 |
October 3, 2019 | https://www.sciencedaily.com/releases/2019/10/191003162541.htm | How much are you polluting your office air just by existing? | Just by breathing or wearing deodorant, you have more influence over your office space than you might think, a growing body of evidence shows. But could these basic acts of existence also be polluting the air in the office room where you work? | To find out, a team of engineers at Purdue University has been conducting one of the largest studies of its kind in the office spaces of a building rigged with thousands of sensors. The goal is to identify all types of indoor air contaminants and recommend ways to control them through how a building is designed and ope... | Ozone Holes | 2,019 |
October 1, 2019 | https://www.sciencedaily.com/releases/2019/10/191001083959.htm | Rising ozone is a hidden threat to corn | Like atmospheric methane and carbon dioxide, ground-level ozone is on the rise. But ozone, a noxious chemical byproduct of fossil fuel combustion, has received relatively little attention as a potential threat to corn agriculture. | A new study begins to address this lapse by exposing a genetically diverse group of corn plants in the field to future ozone levels. The study, reported in the journal "Ozone enters plants the same way carbon dioxide does: It diffuses from the atmosphere into the leaf," said Lisa Ainsworth, a U.S. Department of Agricul... | Ozone Holes | 2,019 |
September 18, 2019 | https://www.sciencedaily.com/releases/2019/09/190918100230.htm | Emissions from cannabis growing facilities may impact indoor and regional air quality | The same chemicals responsible for the pungent smell of a cannabis plant may also contribute to air pollution on a much larger scale, according to new research from the Desert Research Institute (DRI) and the Washoe County Health District (WCHD) in Reno, Nev. | In a new pilot study, DRI scientists visited four cannabis growing facilities in Nevada and California to learn about the chemicals that are emitted during the cultivation and processing of cannabis plants, and to evaluate the potential for larger-scale impacts to urban air quality.At each facility, the team found high... | Ozone Holes | 2,019 |
August 28, 2019 | https://www.sciencedaily.com/releases/2019/08/190828140132.htm | Earth's fingerprint hints at finding habitable planets beyond the solar system | Two McGill University astronomers have assembled a "fingerprint" for Earth, which could be used to identify a planet beyond our Solar System capable of supporting life. | McGill Physics student Evelyn Macdonald and her supervisor Prof. Nicolas Cowan used over a decade of observations of Earth's atmosphere taken by the SCISAT satellite to construct a transit spectrum of Earth, a sort of fingerprint for Earth's atmosphere in infrared light, which shows the presence of key molecules in the... | Ozone Holes | 2,019 |
August 13, 2019 | https://www.sciencedaily.com/releases/2019/08/190813180833.htm | Air pollution can accelerate lung disease as much as a pack a day of cigarettes | Air pollution -- especially ozone air pollution which is increasing with climate change -- accelerates the progression of emphysema of the lung, according to a new study led by the University of Washington, Columbia University and the University at Buffalo. | While previous studies have shown a clear connection of air pollutants with some heart and lung diseases, the new research published Aug. 13 in "We were surprised to see how strong air pollution's impact was on the progression of emphysema on lung scans, in the same league as the effects of cigarette smoking, which is ... | Ozone Holes | 2,019 |
July 25, 2019 | https://www.sciencedaily.com/releases/2019/07/190725100519.htm | Reducing greenhouse gas in rocky mountain region has health, financial benefits | Research by Drexel University and the University of Colorado at Boulder suggests that imposing fees on energy producers that emit greenhouse gas could improve the health and financial well-being of the Rocky Mountain region. | Using sophisticated modeling programs that can project atmospheric concentrations of ozone, a ground-level pollutant, by considering factors like current emissions from power plants, weather trends and changes in energy production, the team compared the effects of four scenarios on the Rocky Mountain region of 2030. Th... | Ozone Holes | 2,019 |
July 23, 2019 | https://www.sciencedaily.com/releases/2019/07/190723121906.htm | Ozone threat from climate change | Increasing temperatures due to climate change will shift climatic conditions, resulting in worse air quality by increasing the number of days with high concentrations of ozone, according to a new journal article on air quality throughout the Mid-Atlantic region from researchers at the University of Delaware's College o... | Cristina Archer led a team from CEOE as the members compiled nearly 50 years' worth of data from Delaware Department of Natural Resources and Environmental Control (DNREC) air monitoring and climate models to analyze climatic trends. They found that rising temperatures will increase the number of days in a year where o... | Ozone Holes | 2,019 |
July 22, 2019 | https://www.sciencedaily.com/releases/2019/07/190722115931.htm | Airborne lidar system poised to improve accuracy of climate change models | Researchers have developed a laser-based system that can be used for airborne measurement of important atmospheric gases with unprecedented accuracy and resolution. The ability to collect this data will help scientists better understand how these atmospheric gases affect the climate and could help improve climate chang... | In the Optical Society journal The tropopause separates the surface-based troposphere layer where weather takes place from the overlying stratosphere that contains the ozone layer that protects life on Earth from harmful radiation. Scientists want to study water vapor and ozone in the tropopause because the distributio... | Ozone Holes | 2,019 |
July 16, 2019 | https://www.sciencedaily.com/releases/2019/07/190716151358.htm | By cutting ozone pollution now, China could save 330,000 lives by 2050 | If China takes strong measures to reduce its ozone pollution now, it could save hundreds of thousands of lives in the long run, according to a new study led by researchers at Columbia University's Lamont-Doherty Earth Observatory. | "Air pollution is a major problem in China right now," said lead author Daniel Westervelt, an associate research scientist at Lamont-Doherty. "It's a very serious health risk. So it's important to think about what changes can be made to make progress on this problem."High up in the atmosphere, the ozone layer protects ... | Ozone Holes | 2,019 |
June 28, 2019 | https://www.sciencedaily.com/releases/2019/06/190628120533.htm | Pig-Pen effect: Mixing skin oil and ozone can produce a personal pollution cloud | When ozone and skin oils meet, the resulting reaction may help remove ozone from an indoor environment, but it can also produce a personal cloud of pollutants that affects indoor air quality, according to a team of researchers. | In a computer model of indoor environments, the researchers show that a range of volatile and semi-volatile gases and substances are produced when ozone, a form of oxygen that can be toxic, reacts with skin oils carried by soiled clothes, a reaction that some researchers have likened to the less-than-tidy Peanuts comic... | Ozone Holes | 2,019 |
June 24, 2019 | https://www.sciencedaily.com/releases/2019/06/190624111536.htm | Damage to the ozone layer and climate change forming feedback loop | Increased solar radiation penetrating through the damaged ozone layer is interacting with the changing climate, and the consequences are rippling through the Earth's natural systems, effecting everything from weather to the health and abundance of sea mammals like seals and penguins. These findings were detailed in a r... | "What we're seeing is that ozone changes have shifted temperature and precipitation patterns in the southern hemisphere, and that's altering where the algae in the ocean are, which is altering where the fish are, and where the walruses and seals are, so we're seeing many changes in the food web," said Kevin Rose, a res... | Ozone Holes | 2,019 |
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