Climate, Ozone and Study

Study finds global emissions of several banned ozone-destroying CFCs are increasing

Green Car Congress

APRIL 10, 2023

New analysis has found increasing emissions of several ozone-depleting chemicals despite their production being banned for most uses under the Montreal Protocol—and a loophole in the rules is likely responsible. According to the researchers, emissions from these CFCs currently do not significantly threaten ozone recovery.

Ozone

Ozone Emissions Global Switzerland

UCL-led study finds climate impact caused by growing space industry needs urgent mitigation

Green Car Congress

JUNE 26, 2022

The rapidly growing space industry may have a greater climate effect than the aviation industry and undo repair to the protective ozone layer if left unregulated, according to a new study led by UCL and published in the journal Earth’s Future as an open-access paper. —Ryan et al. —Ryan et al.

Climate

Climate Ozone Industrial Industry

Study: 2/3 of aviation climate impact due to emissions other than CO2

Green Car Congress

SEPTEMBER 6, 2020

of the human-made climate impact; two-thirds of this impact are caused by emissions other than CO 2 , according to a new study by researchers in Europe and the US. The study was published in the journal Atmospheric Environment. This new study is based on a thorough review of a decade of research on aviation emissions.

Climate

Climate Emissions CO2 Climate Change

Studies find global COVID-19 lockdowns have significantly reduced PM2.5 and NO2 pollution, but ozone up

Green Car Congress

MAY 12, 2020

Levels of two major air pollutants have been reduced significantly 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. In addition to nitrogen dioxide, one of the new studies finds PM 2.5 Bauwens et al.

Ozone

Ozone Pollution Global Iran

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

Green Car Congress

JANUARY 3, 2019

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. Ke Li, Daniel J.

Ozone

Ozone Pollution China Chinese

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

Green Car Congress

AUGUST 19, 2019

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. and ozone exposure, respectively. —Hong et al.

Climate Change

Climate Change Climate Ozone Future

China study connects ozone pollution to cardiovascular health

Green Car Congress

JULY 17, 2017

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 team studied 89 healthy adults living in Changsha City, China, for one year.

Ozone

Ozone Pollution Connect Connected

Study: 25% EV adoption would save US $17B annually from avoided climate change & pollution damages

Green Car Congress

AUGUST 18, 2020

A new study led by researchers from Northwestern University projects that if electric vehicles replaced 25% of combustion engine cars currently on the road, the United States would save approximately $17 billion annually by avoiding damages from climate change and air pollution. Results show that in more aggressive scenarios—i.e.,

Climate Change

Climate Change Pollution Climate 2014

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

Green Car Congress

JULY 31, 2019

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

Ozone Climate Global Water

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

Green Car Congress

SEPTEMBER 4, 2018

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. 2017 for one ozone metric. The inset shows ozone trends in Beijing (red) and Los Angeles (blue).

Ozone

Ozone Pollution China South Korea

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

Green Car Congress

FEBRUARY 17, 2015

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.

Ozone

Ozone Climate Industrial Industry

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

Green Car Congress

FEBRUARY 6, 2018

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. Trends in daily maximum ozone levels (known as 4MDA8) at urban and non-urban sites.

Ozone

Ozone Global North America Colorado

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

Green Car Congress

MAY 5, 2014

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 RCPs were chosen to represent a broad range of climate outcomes, based on a literature review. Ozone formation.

Ozone

Ozone Climate Change Pollution Climate

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

Green Car Congress

FEBRUARY 22, 2011

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. Click to enlarge.

Ozone

Ozone Climate Carbon Climate Change

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

Green Car Congress

SEPTEMBER 4, 2014

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

Ozone

Ozone 2005 India Pollution

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

Green Car Congress

AUGUST 15, 2019

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 annual averages of ozone levels in study areas were between about 10 and 25 ppb.

Pollution

Pollution Ozone Washington Universal

UCI-led study finds California’s strict air quality regulations have helped farmers

Green Car Congress

MARCH 17, 2020

They found that reductions in ground ozone during this 35-year period resulted in $600 million in increased production annually by the early 2010s. Another difference is that some grains can be annually modified to withstand greater heat and even higher ozone levels in the air. An open-access paper on the work appears in Nature Food.

Ozone

Ozone Davis San Diego Pollution

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

JULY 22, 2010

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. We already know that climate change will bring us increased forest fires, shorter winters, hotter summers and impact our water supply.

Climate Change

Climate Change Ozone Climate California

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

Green Car Congress

JANUARY 19, 2012

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). Their paper appears in the journal Geophysical Research Letters.

Ozone

Ozone Kits 2011 Climate

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

Green Car Congress

FEBRUARY 10, 2013

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.

Climate Change

Climate Change Ozone Climate EPA

New study puts air-pollution related deaths in India in 2019 at 1.67 million

Green Car Congress

DECEMBER 27, 2020

billion (US) in economic losses, according to a new study led by researchers from the Global Observatory on Pollution and Health at Boston College, the Indian Council of Medical Research, and the Public Health Foundation of India. and that due to ambient ozone pollution increased by 139.2%. Air pollution in India resulted 1.67

Pollution

Pollution India 2019 Boston

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

Green Car Congress

OCTOBER 2, 2011

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 same ozone-loss processes occur each winter in the Arctic.

Ozone

Ozone 2011 Aura Davis

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

Green Car Congress

NOVEMBER 3, 2015

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. This work was supported in part by NOAA’s Atmospheric Chemistry, Carbon Cycle, and Climate (AC4) Program and NASA’s Atmospheric Composition Program.

Ozone

Ozone Colorado Gas Carbon

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

Green Car Congress

AUGUST 21, 2009

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. Besides a danger to breathe, ozone lowers crop yields.

Climate Change

Climate Change Ozone Climate Carbon

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

Green Car Congress

APRIL 15, 2019

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. In the study, the researchers applied a prototype version of the new-generation NOAA GFDL global Atmospheric Model, version 4,for their simulations.

Conversion

Conversion Jordan Ozone Coal

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

Green Car Congress

OCTOBER 1, 2019

Freight transportation is a pillar of the US national economy, but while long-haul trucks account for less than 6% of the vehicle miles traveled over US highways, they account for about 40% of the emissions of air polluting particulate matter and about 55% of nitrogen oxides, the precursor to ozone in the atmosphere, the study said.

Emissions

Emissions Diesel Ozone United States

Study projects net cooling of climate from ship emissions through 2050

Green Car Congress

SEPTEMBER 9, 2012

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

Climate Emissions Ozone 2007

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

Green Car Congress

SEPTEMBER 8, 2011

The study will appear next month in the peer-reviewed journal Climatic Change Letters. The study will appear next month in the peer-reviewed journal Climatic Change Letters. Relying more on natural gas would reduce emissions of carbon dioxide, but it would do little to help solve the climate problem. degrees F (0.1-0.2

Coal

Coal Climate Gas Global

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

Green Car Congress

APRIL 11, 2014

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).

Climate

Climate Ozone Climate Change MIT

International study of role of soots impact on Arctic climate

Green Car Congress

APRIL 21, 2011

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. The study will run through 15 May out of Svalbard, Norway.

Climate

Climate International Ozone Norway

Climate Expert: Don't Call It Geoengineering

Cars That Think

NOVEMBER 16, 2021

The leaders of the world have just returned from the UN's latest climate change summit, COP26 , in which the countries that have signed on to the Paris Agreement upped their commitments to fight climate change. C by the year 2100 , according to Climate Action Tracker. C above pre-industrial levels. C above pre-industrial levels.

Climate

Climate Climate Change Mariner Pollution

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

Green Car Congress

JULY 10, 2009

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.

Ozone

Ozone Water CO2 MIT

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

NOVEMBER 21, 2011

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). The contribution of HFCs to climate forcing is currently less than 1% of all greenhouse gases.

Climate

Climate Ozone Emissions Transportation

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

Green Car Congress

JUNE 15, 2011

The climate change benefit is estimated for a given year (2050) and human health and crop benefits are. Fast action on pollutants such as black carbon, ground-level ozone and methane may help limit near term global temperature rise and significantly increase the chances of keeping temperature rise below 2 °C (3.6 °F)—and

Ozone

Ozone Carbon Climate Change Global

Ozone pollution will worsen climate change impact, study suggest

Green Cars News

AUGUST 7, 2014

Air pollution and ground-level ozone may worsen the impact that climate change is having on food crop production around the world, according to new research. Ground-level ozone is formed when pollutants from cars and industry react with sunlight, with the amount of ozone produced increasing as tem[.]. Green credentials'

Climate Change

Climate Change Ozone Pollution Climate

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

Green Car Congress

SEPTEMBER 1, 2012

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. —Cappa et al. Earlier post.).

Climate

Climate Climate Change Carbon Boston

Study finds anthropogenic PM and dust undercutting global solar energy production

Green Car Congress

JUNE 27, 2017

According to a new study led by a team at Duke University, airborne particulate matter and dust are cutting solar photovoltaic energy output by more than 25% in certain parts of the world, with roughly equal contributions from ambient PM and PM deposited on photovoltaic surfaces. Credit: ACS, Bergin et al. Click to enlarge.

Solar

Solar Energy Global Production

New international study finds lab testing of diesel NOx emissions underestimates real-world levels by up to 50%

Green Car Congress

MAY 15, 2017

A new international study has found that laboratory tests of nitrogen oxide emissions from diesel vehicles significantly underestimate the real-world emissions by as much as 50%. The team then computed the impacts on health, crops and climate. A paper on the work is published in the journal Nature. —Chris Malley.

Diesel

Diesel International Emissions Ozone

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

JANUARY 13, 2012

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. Ozone, a key component of smog and also a greenhouse gas, damages crops and human health.

Carbon

Carbon Ozone Emissions International

GISS study finds applying stricter non-CO2 vehicle emission standards worldwide would yield climate benefits in addition to major health and agricultural benefits

Green Car Congress

APRIL 4, 2011

Climate response to non-CO 2 vehicle emissions. Bars on the right show uncertainty ranges for 2070, including contributions from both forcing and climate sensitivity (67%; CI). Bars on the right show uncertainty ranges for 2070, including contributions from both forcing and climate sensitivity (67%; CI). Shindell et al.

Climate

Climate Standards Emissions Climate Change

UMD-led study finds China’s SO2 emissions down 75% since 2007, India’s up 50%; India may now be the top SO2 emitter

Green Car Congress

NOVEMBER 13, 2017

Although China and India remain the world’s largest consumers of coal, a new University of Maryland-led study found that China’s sulfur dioxide emissions fell by 75% since 2007, while India’s emissions increased by 50%. The open access study is published in the journal Scientific Reports. Click to enlarge. —Can Li.

India

India 2007 Emissions Aura

MIT study finds air quality co-benefits of US carbon policies can significantly offset costs, depending upon the policy

Green Car Congress

AUGUST 25, 2014

The human health benefits associated with improvements in air quality related to the reduction in greenhouse gas emissions improvements can offset 26–1,050% of the cost of US carbon policies, depending upon the type of policy, according to a new study by a team from MIT. precursors through 2030. precursors through 2030.

MIT

MIT Carbon Climate Climate Change

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

Green Car Congress

MARCH 19, 2012

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.). —Margaret Taylor. Allowance price-stabilization options (e.g.,

Climate

Climate Energy Clean Cleaning

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

Green Car Congress

MAY 25, 2010

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. Direct and indirect land use changes were also studied. (A A hat-tip to John!).

Climate

Climate Waste Climate Change Sweden

Study finds global emissions of several banned ozone-destroying CFCs are increasing

UCL-led study finds climate impact caused by growing space industry needs urgent mitigation

Study: 2/3 of aviation climate impact due to emissions other than CO2

Studies find global COVID-19 lockdowns have significantly reduced PM2.5 and NO2 pollution, but ozone up

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

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

China study connects ozone pollution to cardiovascular health

Study: 25% EV adoption would save US $17B annually from avoided climate change & pollution damages

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

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

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

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

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

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

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

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

UCI-led study finds California’s strict air quality regulations have helped farmers

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

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

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

New study puts air-pollution related deaths in India in 2019 at 1.67 million

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

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

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

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

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

Study projects net cooling of climate from ship emissions through 2050

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

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

International study of role of soots impact on Arctic climate

Climate Expert: Don't Call It Geoengineering

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

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

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

Ozone pollution will worsen climate change impact, study suggest

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

Study finds anthropogenic PM and dust undercutting global solar energy production

New international study finds lab testing of diesel NOx emissions underestimates real-world levels by up to 50%

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

GISS study finds applying stricter non-CO2 vehicle emission standards worldwide would yield climate benefits in addition to major health and agricultural benefits

UMD-led study finds China’s SO2 emissions down 75% since 2007, India’s up 50%; India may now be the top SO2 emitter

MIT study finds air quality co-benefits of US carbon policies can significantly offset costs, depending upon the policy

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

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

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