CSIRO study finds ozone uptake in oceans much lower than previously thought

Green Car Congress

CSIRO scientists have developed a new way to account for ozone in computer simulations of the climate. This latest modeling shows that the oceans take much less ozone out of the atmosphere than previously thought. Ozone (O 3 ) is formed by reactions of chemicals such as nitrogen oxides and volatile organic compounds—i.e., Ozone is the third most important greenhouse gas after carbon dioxide and methane, in terms of potential for global warming.

2019 60

Study suggests future climate changes to worsen air quality for >85% of China’s population; ~20k+ additional deaths each year

Green Car Congress

A study by a team of researchers from China, the US and Germany suggests that future climate change may worsen air quality for more than 85% of China’s population, leading to an additional 20,000 deaths each year. and ozone exposure, respectively.

Trending Sources

Harvard/Nanjing study: China’s war on PM2.5 pollution is causing more severe ozone pollution

Green Car Congress

pollution is falling, harmful ground-level ozone pollution is on the rise, especially in large cities. Their study is published in Proceedings of the National Academy of Sciences (PNAS). Ozone is the main ingredient in smog and has been studied since it began choking cities in the US in the early 1950s. Ozone is formed through a series of chemical reactions, starting with the oxidation of volatile organic compounds (VOCs).

2019 89

Study finds that unregulated VSLS efficient at influencing climate through depletion of stratospheric ozone

Green Car Congress

Although halogens released from long-lived anthropogenic substances, such as chlorofluorocarbons (CFCs), are the principal cause of the recent depletion of stratospheric ozone, recent observations show that very short-lived substances (VSLS), with lifetimes generally under six months, are also an important source of stratospheric halogens. At present, naturally-emitted VSLS account for around 90% of the total ozone loss caused by VSLS in the lower stratosphere.

2015 80

Study: ozone levels higher across China than in other countries tracking the air pollutant

Green Car Congress

In China, people breathe ozone-laden air two to six times more often than people in the United States, Europe, Japan, or South Korea, according to a new international study published in Environmental Science & Technology Letters. Urban surface ozone level trends in China (red), Japan (purple), Europe (orange), and the United States (blue) from 1980?2017 2017 for one ozone metric. The inset shows ozone trends in Beijing (red) and Los Angeles (blue).

2018 73

China study connects ozone pollution to cardiovascular health

Green Car Congress

Exposure to ozone, long associated with impaired lung function, is also connected to health changes that can cause cardiovascular disease such as heart attack, high blood pressure and stroke, according to a new study of Chinese adults. The findings associated ozone exposure with markers of platelet activation and increased blood pressure. The team studied 89 healthy adults living in Changsha City, China, for one year.

Ozone 65

TOAR shows present-day global ozone distribution and trends relevant to health; public database

Green Car Congress

Ozone levels across much of North America and Europe dropped significantly between 2000 and 2014. People living in parts of southern Europe, South Korea and southern Japan and China also experienced more than 15 days a year of ozone levels above 70 ppb.

2018 114

UNEP study: small number of measures targeting black carbon and tropospheric ozone could yield immediate climate benefits

Green Car Congress

The climate change benefit is estimated for 2050 and human health and crop benefits are for 2030 and beyond. Widespread implementation is achievable with existing technology but would require significant strategic investment and institutional arrangements, the study found.

2011 101

Study finds rising temperatures increase risk of unhealthy ozone levels absent sharp cuts in precursors

Green Car Congress

Ozone pollution across the continental United States will become far more difficult to keep in check as temperatures rise, according to new work led by the National Center for Atmospheric Research (NCAR). The study shows that Americans face the risk of a 70% increase in unhealthy summertime ozone levels by 2050, assuming continued greenhouse gas emissions with resultant significant warming (IPCC Scenario A2 and RCP (Representative Concentration Pathway) 8.5.). The study.

2014 73

KIT study finds extraordinarily cold Arctic stratospheric winter enhanced ozone degradation above the Arctic

Green Car Congress

Extraordinarily cold temperatures in the stratosphere during the winter of 2010/2011 caused the most massive destruction of the ozone layer above the Arctic so far, according to a study by climate researchers at KIT (Karlsruhe Institute of Technology).

Kits 98

EPA Climate Change Adaptation Plan sees likely increase in tropospheric ozone, with more difficulty in attaining NAAQS in many areas

Green Car Congress

Among the many climate-related vulnerabilities that can impact its mission, the US Environmental Protection Agency (EPA) cites a likely increase in tropospheric ozone pollution as potentially making it more difficult to attain National Ambient Air Quality Standards ( NAAQS ) in many areas with existing ozone problems. The analysis comes in a draft Climate Change Adaptation Plan that the agency has released for public comment. Climate Change Emissions Policy

Study finds some refrigerants less damaging to ozone layer can degrade to long-lived GHG CF4

Green Car Congress

Some of the substitutes for ozone-damaging chemicals that being phased out worldwide under international agreements are themselves potent greenhouse gases and contribute to warming. CF 4 essentially lasts forever because there aren’t any known removal mechanisms in the atmosphere, said James Burkholder, a research chemist at NOAA ESRL and lead author of the study.

2015 75

Study: surface ozone in India in 2005 damaged 6M tonnes of crops, enough to feed 94M people in poverty

Green Car Congress

Ozone, the main component of smog, is a plant-damaging pollutant formed by emissions from vehicles, cooking stoves and other sources. New research shows that ozone pollution damaged millions of tons of wheat, rice, soybean and cotton crops in India in 2005. Surface ozone pollution in India damaged 6 million metric tons (6.7 There are about 270 million Indians that live in poverty, according to the study. India’s economic loss from ozone’s harm to crops amounted to $1.29

2005 83

Study Concludes Warming Climate Will Increase Ozone Levels in Major California Air Basins; Climate Change and Regional Air Quality Are Intertwined Problems

Green Car Congress

Illustration of projected ozone changes in the South Coast region due to climate change in 2050. Areas in orange and red could see ozone concentrations elevated by 9 to 18 parts per billion. In a new report released by the California Air Resources Board, scientists from the University of California at Davis and Berkeley estimate that rising temperatures from climate change will increase ozone levels in California’s major air basins.

Study finds depletion of Antarctic ozone trumps GHG increase in shifting Southern Hemisphere jet-stream

Green Car Congress

Depletion of Antarctic ozone is a more important factor than increasing greenhouse gases in shifting the Southern Hemisphere jet stream in a southward direction, according to researchers at Penn State. Their study is published today in the journal Science. According to Lee, based on modeling studies, both ozone depletion and greenhouse gas increase are thought to have contributed to the southward shift of the Southern Hemisphere jet stream, with the former having a greater impact.

Ozone 93

Reducing Black Carbon Emissions and Ground-Level Ozone Would Provide Immediate Benefit Against Climate Change

Green Car Congress

Reducing emissions of black carbon soot and ground-level ozone would quickly make a considerable dent in the climate change problem and would also contribute to public health and protect crop yields, according to an essay in the September/October issue of Foreign Affairs. The piece was co-authored by Scripps Institution of Oceanography at UC San Diego climate and atmospheric scientist V. Besides a danger to breathe, ozone lowers crop yields.

NASA-led study identifies unprecedented depletion of stratospheric ozone layer above Arctic

Green Car Congress

A NASA-led study has documented an unprecedented depletion of Earth’s protective ozone layer above the Arctic last winter and spring caused by an unusually prolonged period of extremely low temperatures in the stratosphere. The study, published online Sunday in the journal Nature , finds the amount of ozone destroyed in the Arctic in 2011 was comparable to that seen in some years in the Antarctic, where an ozone “hole” has formed each spring since the mid 1980s.

Ozone 69

NOAA Study Identifies Nitrous Oxide as Top Ozone-Depleting Emission in 21st Century

Green Car Congress

Currently, anthropogenic N 2 O emissions represent the largest contribution to ozone depletion. The study, published online 27 August in the journal Science , for the first time evaluated nitrous oxide emissions from human activities in terms of their potential impact on Earth’s ozone layer.

2009 78

Study Finds Ozone, Nitrogen Change the Way Rising CO2 Affects Earths Water

Green Car Congress

Through a recent modeling experiment, a team of NASA-funded researchers have found that future concentrations of carbon dioxide and ozone in the atmosphere and of nitrogen in the soil are likely to have an important but overlooked effect on the cycling of water from sky to land to waterways.

2009 90

Fast action on black carbon, ozone and methane could help limit global temperature rise to 2 degrees C

Green Car Congress

The climate change benefit is estimated for a given year (2050) and human health and crop benefits are. °F), according to a new assessment released today in Bonn, Germany, during a meeting of the UN Framework Convention on Climate Change (UNFCCC). Climate Change Emissions

2011 101

Study: curbing diesel emissions could reduce mortality rates in big cities

Green Car Congress

Three emission scenarios were considered: A projected business-as-usual socioeconomic growth with freight fleet turnover and stringent emission control (CTR); The application of a carbon-pricing climate policy (PO); and.

2019 125

Study projects net cooling of climate from ship emissions through 2050

Green Car Congress

A recent study by an international team calculated that shipping causes a net cooling of climate across all parametrizations of the indirect aerosol effect (IAE) and scenarios throughout the period 1900?2050. A recent study commissioned by the International Maritime Organization (IMO) estimated total emissions of 1046 Tg CO 2 yr ?1 Climate Change Climate models Emissions Ports and Marine

2012 84

Study finds climate impact of long distance trip can vary by factor of 10 depending upon mode, efficiency and occupancy

Green Car Congress

GWP100 weighted specific climate impact (g CO 2 -eq per pkm) as a function of vehicle occupancy. 25% occupancy, the climate impact is at the level of an average air trip, whereas a car with three or more passengers, 60% occupancy or more, it is at the low level of average trains or coaches.

2013 90

Study associates long-term exposure to air pollution with increasing emphysema

Green Car Congress

Long-term exposure to ambient air pollutants, especially O 3 (ozone), is significantly associated with increasing emphysema, according to a new study led by the University of Washington, Columbia University and the University at Buffalo. The study determined that ozone levels in some major US cities are increasing by that amount, due in part to climate change. The annual averages of ozone levels in study areas were between about 10 and 25 ppb.

2019 79

Study Concludes that Rocket Launches May Need Regulation to Prevent Ozone Depletion

Green Car Congress

The global market for rocket launches may require more stringent regulation in order to prevent significant damage to Earth’s stratospheric ozone layer in the decades to come, according to a new study by researchers in California and Colorado. If left unregulated, rocket launches by the year 2050 could result in more ozone destruction than was ever realized by CFCs.” This raises the possibility of regulation of space launch systems in the name of ozone protection.

2009 60

Northwestern/Princeton study explores air quality impacts of aggressive conversion to EVs

Green Car Congress

Most studies that have examined the impact of EVs report only changes in the total emissions associated with their adoption, but do not consider their spatial or temporal variation.

2019 123

Study findings suggest that switching from coal to natural gas would do little for global climate

Green Car Congress

Although the burning of natural gas emits far less carbon dioxide than coal, a new study by Tom Wigley, a senior research associate at the US National Center for Atmospheric Research (NCAR) and an adjunct professor at the University of Adelaide in Australia, concludes that a greater reliance on natural gas would fail to significantly slow down climate change. The study will appear next month in the peer-reviewed journal Climatic Change Letters.

2011 109

International study of role of soots impact on Arctic climate

Green Car Congress

Scientists from the US, Norway, Russia, Germany, Italy and China are participating in a study examining the potential role of black carbon, or soot, on the rapidly changing Arctic climate. The Arctic climate is changing faster than some scientists expected. —Tim Bates, a research chemist at NOAA’s Pacific Marine Environmental Laboratory (PMEL) in Seattle and co-lead of the US component of the study. The study will run through 15 May out of Svalbard, Norway.

2011 73

Study finds warming caused by synthetic greenhouse gases could outweigh climate benefits from phasing down CFCs

Green Car Congress

An international team examining the total warming impact of 25 major synthetic greenhouse gases (SGHGs) has concluded that without additional limits on SGHG use, the resulting increase in warming could outweigh the climate benefits gained thus far from phasing down chlorofluorocarbons (CFCs). Their study is published in Geophysical Research Letters.

2014 73

Urban CO2 Domes May Enhance May Increase Ozone and PM, With Accompanying Increase in Mortality

Green Car Congress

In a new study published online 10 March in the ACS journal Environmental Science and Technology , however, Stanford University professor Mark Jacobson finds that local CO 2 emissions in isolation may increase local ozone and particulate matter. His study estimates that local CO 2 emissions may increase premature mortality by 50-100 and 300-1,000/year in California and the US, respectively. his study contradicts that assumption.

Ozone 78

Study suggests cap and trade programs do not provide sufficient incentives for energy technology innovation; implications for climate policy

Green Car Congress

Policies incentivizing the private sector to push to develop innovative “clean” technologies are likely to play a key role in achieving climate stabilization. Respectively, Title IV of the 1990 Clean Air Act and the Ozone Transport Commission/NO x Budget Program.). This effect is worth noting, given the likely importance for long-term climate stabilization of capturing the potential of R&D to create and improve clean technologies, as well as develop scienti?c

2012 89

Cutting Non-CO2 Pollutants Can Delay Abrupt Climate Change; The Fast Action Climate Agenda

Green Car Congress

This would mean that the climate system is close to entering if not already within the zone of “dangerous anthropogenic interference” (DAI). “We Cutting HFCs, black carbon, tropospheric ozone, and methane can buy us about 40 years before we approach the dangerous threshold of 2°C warming. —co-author

Study finds fleet switch from PFI to GDI engines will result in net reduction in global warming

Green Car Congress

The study, by a team of researchers from Carnegie Mellon University, University of Georgia, Aerodyne Research, California Air Resources Board (ARB), Ohio State University, UC Berkeley, and UC San Diego is published in the ACS journal Environmental Science & Technology.

2017 97

Field study finds soot particles absorb significantly less sunlight than predicted by models; climate models may be overestimating warming by BC

Green Car Congress

Although viewed as a potential target in the global effort to reduce climate change, atmospheric black carbon particles absorb significantly less sunlight than scientists have predicted, according to a new study by an international team of researchers, published in the journal Science.

2012 116

Study: air pollution causes 800,000 extra deaths a year in Europe and 8.8 million worldwide

Green Car Congress

Air pollution could be causing double the number of excess deaths a year in Europe than has been estimated previously, according to a study published in the European Heart Journal. and ozone.

2019 108

Study Finds Current Swedish Biofuels Offer Major Climate Benefits; Biogas from Manure the Best

Green Car Congress

A study by researchers at Lund University in Sweden found that Swedish biofuels produce between 65 and 148% less greenhouse gas emissions than gasoline and diesel, even when direct and indirect land use changes are taken into account. In the study, which looked at various types of biogas, ethanol and biodiesel, biogas from manure that came out on top. Direct and indirect land use changes were also studied. (A Tags: Biodiesel Biomethane Climate Change Ethanol Europe

2010 65

UN Review of Recent Climate Research Concludes That Impacts Of Climate Change Coming Faster Than Anticipated

Green Car Congress

Significant climate anomalies 2008/2009. Source: Climate Change Compendium. A UN review of some 400 major scientific contributions to Earth systems and climate science released through peer-reviewed literature or from research institutions over the last three years, has found that the pace and scale of climate change may now be outstripping even the worst case predictions of the last report of the Intergovernmental Panel of Climate Change (IPCC).

California ARB and NOAA Collaborating in $20M Research on Interaction of Air Pollution and Climate Change; One Atmosphere Approach

Green Car Congress

Schematic diagram of the trade-offs between the implications for regional air quality and global climate change of new policies for management of the atmosphere. The complex roles that ozone and aerosols play in the atmosphere provide examples of such trade-offs.

Researchers Find That Stratospheric Ozone Depletion Reduces Southern Ocean Carbon Uptake

Green Car Congress

Researchers in France have found that ozone depletion above Antarctica has significantly reduced the Southern Ocean’s ability to absorb atmospheric CO 2 and has also accelerated acidification of southern polar waters, despite lesser CO 2 uptake. Until now, the saturation of the carbon sink in the Southern Ocean has not been correctly simulated by the climate models used. unit decline in seawater pH during the study period—i.e.,

2009 60

Study Highlights the Importance of Considering Climate Effects of Non-CO2 Emissions from Transport in Mitigation Strategies and Policies

Green Car Congress

The study by Nadine Unger, Drew Shindell and James Wang will appear in an upcoming issue of the journal Atmospheric Environment. The study applied the NASA Goddard Institute for Space Studies (GISS) model for Physical Understanding of Composition-Climate INteractions and Impacts (G-PUCCINI).

2009 78

MIT study finds including non-CO2 emissions from synthetic aviation fuel in lifecycle analysis of climate impact can lead to decrease in relative environmental merit; need for a holistic analysis framework

Green Car Congress

Aviation climate change impacts pathway. Contrails and contrail cirrus sustain only for hours to days and cause atmospheric warming; however, their impact is the most uncertain of all aviation induced climate forcing. Credit: ACS, Stratton et al. Click to enlarge.

2011 120

UN report projects that increasing use of HFCs likely to have a significant climate impact by 2050; equivalent to current total annual emissions from transport

Green Car Congress

The decrease in CO 2 equivalent emissions of ODSs (ozone-depleting substances: CFCs, halons, HCFCs, and others) may be offset by the projected increase in their non-ozone depleting substitutes (HFCs) (lines designated as HFC scenarios). Used in products such as air conditioners, refrigerators, firefighting equipment and insulation foams, HFCs are becoming popular as replacements for those phased-out or being phased-out to protect the ozone layer. Climate and the Ozone Layer.

2011 96

International study identifies 14 key measures to reduce methane and black carbon emissions; reduction in projected global mean warming of ~0.5 °C by 2050

Green Car Congress

Circle areas are proportional to values for (A and B) climate change, (C and D) human health (values for population over age 30), and (E and F) agriculture. Methane is both a potent greenhouse gas and an important precursor to ground-level ozone. Black carbon Climate Change Emissions

2012 115