Green Car Congress

JANUARY 21, 2010

Springtime ozone distributions for 1984, 1995–2008 in the mid-troposphere (3.0–8.0 Springtime ozone levels above western North America are rising primarily due to air flowing eastward from the Pacific Ocean, a trend that is largest when the air originates in Asia. The US EPA recently proposed new tougher ground-level ozone standards.

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North America Ozone Asia America 199

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. Cronin, J. Melillo, D. Kicklighter, C.

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Ozone Water CO2 MIT 186

Green Car Congress

MAY 17, 2018

Emissions of one of the chemicals most responsible for the Antarctic ozone hole are on the rise, despite an international treaty that required an end to its production in 2010, a new study by researchers at NOAA and their colleagues shows. —NOAA scientist Stephen Montzka, lead author of the paper.

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APRIL 29, 2013

In its recently released Inventory of US Greenhouse Gas Emissions and Sinks: 1990 – 2011 ( earlier post ), the US Environmental Protection Agency (EPA) reported that methane (CH 4 ) emissions from the field production of natural gas have declined by 36% from 2007 to 2011 (from 83.1 a global warming potential of 21. (The

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2007 2011 EPA Gas 285

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.,

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Ozone Climate Global Water 150

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APRIL 1, 2009

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. Darin Toohey.

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Ozone Los Angeles Colorado Corporation 150

Green Car Congress

NOVEMBER 10, 2011

NOAA’s updated Annual Greenhouse Gas Index (AGGI), which measures the direct climate influence of many greenhouse gases such as carbon dioxide and methane, shows a continued steady upward trend. NOAA scientists created the AGGI recognizing that carbon dioxide is not the only greenhouse gas affecting the balance of heat in the atmosphere.

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2010 Gas Ozone 2004 199

Green Car Congress

FEBRUARY 27, 2018

Global levels of the hydrocarbons ethane and propane in the atmosphere have been underestimated by more than 50%, according to a new study by a team of scientists from Europe and the US. Levels of ethane and propane declined in many places the 1980s and 1990s, but global growth in demand for natural gas means these trends may be reversing.

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Emissions Global Ozone 2011 210

Green Car Congress

AUGUST 28, 2009

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. Source: Ravishankara et al. The team, A.R.

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Ozone Emissions 2009 Climate 150

Green Car Congress

NOVEMBER 29, 2010

Led by the tiny Pacific island of the Federated States of Micronesia, a growing group of low-lying islands and other vulnerable countries are calling for fast action on the approximately 50% of global warming that is caused by pollutants other than carbon dioxide (CO 2 ). The next round of UN climate negotiations begins in Cancun today.

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Micronesia Pollution Ozone Global 199

Green Car Congress

NOVEMBER 7, 2017

Ozone pollution near Earth’s surface is one of the main ingredients of summertime smog. It is also not directly measurable from space due to the abundance of ozone higher in the atmosphere, which obscures measurements of surface ozone. —Jin et al.

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Ozone Insight Netherlands North America 150

Green Car Congress

DECEMBER 22, 2010

This new global emission estimate is startling. Nitrous oxide is a potent greenhouse gas that contributes to climate change and stratospheric ozone destruction. It is produced via a microbial process called denitrification, which converts nitrogen to nitrous oxide and an inert gas called dinitrogen.

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New Hampshire Global Climate Change Ozone 199

Green Car Congress

APRIL 29, 2016

The Bakken Formation, a shale oil and gas field in North Dakota and Montana, is emitting roughly 2% (about 250,000 tons per year) of the globe’s ethane, according to new study led by researchers at the University of Michigan. And they’re sufficient to explain much of the global shift in ethane concentrations.

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Ozone Global Emissions North Dakota 150

Green Car Congress

JUNE 9, 2013

A global phase down of HFCs could potentially reduce some 90 gigatons of CO 2 equivalent by 2050, equal to roughly two years worth of current global greenhouse gas emissions. While they do not deplete the ozone layer, many are highly potent greenhouse gases.

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United States Ozone China Climate Change 218

Green Car Congress

JULY 11, 2013

Renault selected six environmental indicators for the LCA: Global Warming 100yr Potential (kg CO 2 equivalent). Quantifies non-natural increase of greenhouse effect gas concentration (CO 2 , N 2 O, CH 4 , refrigerants.) in the atmosphere and consequently of global warming potential. Tailpipe CO 2 (NEDC). emissions). The review.

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Li-ion Gasoline-Electric Ozone Diesel 364

Green Car Congress

OCTOBER 30, 2009

The 100-year global warming potentials (GWPs) for methane, CO, and NO x (per Tg N) as given in the AR4 and in this study when including no aerosol response; the direct radiative effect of aerosol responses; and the direct+indirect radiative effects of aerosol responses. Source: Shindell at al. Click to enlarge. Shindell et al.

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Climate Change Climate Ozone Pollution 268

Green Car Congress

FEBRUARY 28, 2011

The chemical, which does not deplete the ozone layer, may now be used in air conditioning for new cars and light trucks. When used appropriately, EPA says, this chemical can reduce the environmental impact of motor vehicle air conditioners and has a global warming potential that is 99.7%

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Green Car Congress

NOVEMBER 23, 2011

In the months following a pulse of NO x in the upper atmosphere, ozone production is stimulated causing a short-term warming. The corresponding reduction in CH 4 , which is an important ozone precursor, leads to a long-term reduction in ozone. —Stratton et al.

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MIT Climate Emissions Fuel 273

Green Car Congress

MAY 12, 2017

Thus, the researchers concluded, switching from PFI to GDI vehicles will likely lead to a reduction in net global warming. Recent studies have compared emissions of PFI and GDI vehicles, including particle number and mass, gaseous pollutants, and nonmethane organic gas (NMOG) composition for a limited number of compounds.

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Fleet Engine Fuel Economy Global 207

Green Car Congress

JANUARY 16, 2012

Now, researchers from Sandia National Laboratory’s Combustion Research Facility, the University of Manchester and the University of Bristol report in a paper in Science the first direct kinetics measurements made of reactions of any gas-phase Criegee intermediate, in this case formaldehyde oxide (CH 2 OO). —Welz et al.

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Ozone Climate Change 2012 Climate 268

Green Car Congress

DECEMBER 23, 2012

The California Air Resources Board (ARB) has issued its official Auction Notice for the California Cap-and-Trade Program Greenhouse Gas Allowance Auction on 19 February 2013—the second official auction. The Cap-and-Trade Regulation sets an overall limit (cap) on greenhouse gas (GHG) emissions from specified industrial sectors.

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California Ozone 2013 Carbon 236

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APRIL 15, 2019

The exponentially increasing global market share of EVs has prompted research on their efficacy in reducing greenhouse gases, but comparatively little effort has focused on their impact on air quality. coal, oil, natural gas, and biomass). —Schnell et al. Seasons and times of day. Schnell et al.

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Conversion Jordan Ozone Coal 281

Green Car Congress

NOVEMBER 22, 2011

The amount of greenhouse gases in the atmosphere reached a new high in 2010 since pre-industrial time and the rate of increase has accelerated, according to the World Meteorological Organization’s (WMO) Greenhouse Gas Bulletin. Nitrous oxide contributes about 6% to the overall global increase in radiative forcing since 1750.

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2010 Industry Industrial Ozone 199

Green Car Congress

AUGUST 18, 2015

The US Environmental Protection Agency (EPA) released its latest set of proposed standards to reduce emissions of methane and volatile organic compounds (VOCs) from the oil and natural gas industry. The proposal also includes incentives to spur the oil and gas industry to minimize leaks.

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EPA Oil Gas Industry 150

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OCTOBER 15, 2018

The process involves swirling the gas with air as part of the power generation process. Although the space and time-averaged emission (STAE) of NO was found to decrease with increase in the global equivalence ratio (global ?) The localized NO concentrations in non-premixed flames were shown to depend on the local ?

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Emissions Hydrogen Fuel Global 308

Green Car Congress

JUNE 20, 2011

For the first time, observed Southern Hemisphere greenhouse gas (GHG) data can be easily accessed by the public on a new CSIRO website. The atmospheric level of carbon dioxide, which is the most important long-lived greenhouse gas influenced by human activities, is at its highest level in more than a million years. per cent each year.

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Ozone Climate Change Carbon Mariner 210

Green Car Congress

MARCH 8, 2013

The Volkswagen Group announced that it is choosing CO 2 as the future low global warming potential (GWP) refrigerant for its mobile air conditioning (MAC) systems. With a GWP (Global Warming Potential) value of 1, R744 is 99.3% Earlier post.). Earlier post.). below the EU’s now-specified GWP limit of 150 for MAC systems.

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Future CO2 2009 Climate 311

Green Car Congress

DECEMBER 14, 2020

HFCs are synthetic gases that are used in a variety of applications, but mainly to replace ozone-depleting substances in aerosols, foams, refrigeration and air-conditioning. California is required to reduce HFC emissions 40% below 2013 levels by 2030 under Senate Bill 1383.

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Pollution California Commercial Climate 281

Green Car Congress

APRIL 11, 2019

Improving access to cleaner forms of transportation, like electrified public transport and active commuting by cycling and walking, would not only bring down NO 2 levels, but would also reduce asthma, enhance physical fitness, and cut greenhouse gas emissions. —Susan Anenberg.

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Green Car Congress

JANUARY 23, 2020

Despite reports that global emissions of the potent greenhouse gas, HFC-23, were almost eliminated in 2017, an international team of scientists, led by the University of Bristol, has found atmospheric levels growing at record values. This gas has very few industrial applications.

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Emissions Ozone India 2017 199

Green Car Congress

APRIL 11, 2014

Chlorofluorocarbons (CFCs)—commonly used in refrigerators and air conditioners—play a role in creating a hole in the ozone layer over Antarctica. 2 in 2020, before declining by approximately 26% by 2050, despite continued growth of fully fluorinated greenhouse gas emissions. years of CO 2 emissions at current levels.

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Climate Ozone Climate Change Emissions 199

Green Car Congress

MAY 28, 2010

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. Source: NOAA. Click to enlarge. emission inventories?

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Climate Change Climate Pollution California 210

Green Car Congress

MAY 16, 2012

Tom Sharkey, chairperson of the Michigan State University biochemistry and molecular biology department, believes isoprene, a gas given off by plants to help them cope with rapid increases in temperature that can occur in sunlight. His team also has created models to measure how much isoprene plants release on a global scale.

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Ozone Production Michigan Automobile 225

Green Car Congress

OCTOBER 16, 2015

Specifically, the proposed rule updates the current prohibition under section 608 of the Clean Air Act against knowingly venting, releasing or disposing of ozone-depleting (ODS) and substitute refrigerants and extends the requirements, as appropriate, to non-ozone-depleting substitute refrigerants, such as hydrofluorocarbons (HFCs).

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EPA Emissions Global Ozone 150

Green Car Congress

SEPTEMBER 15, 2016

The California Energy Commission approved a $1-million grant to develop a 12-liter natural gas engine that produces near-zero nitrogen oxide (NO x ) tailpipe emissions. Cummins has a history of developing natural gas engines for heavy-duty application, and its engines are being used globally in a variety of commercial vehicles.

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Grant Gas Engine Energy 150

Green Car Congress

NOVEMBER 23, 2009

Atmospheric levels of major greenhouse gases continue to increase, according to the World Meteorological Organization’s (WMO) 2008 Greenhouse Gas Bulletin. According to the NOAA Annual Greenhouse Gas Index (AGGI), the total radiative forcing by all long-lived greenhouse gases has increased by 26.2% since 1990 and by 1.3%

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Green Car Congress

MARCH 29, 2010

Unlike other ethers, DME does not form peroxides, is non-toxic, has no effect on global warming nor ozone depletion and can be considered an environmentally friendly solvent. Both DME synthesized gas and liquid from coal are being utilized more frequently as inexpensive fuels in the People’s Republic of China.

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Japan Oil Ozone Coal 199