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They found that the increase in ozone burden due to the spatial distribution change slightly exceeds the combined influences of the increased emission magnitude and global methane. Based on their findings, they suggested that emission increases in Southeast, East and South Asia may be most important for the ozone change.
The first peer-reviewed study to directly quantify how emissions from oil and natural gas (O&NG) activities influence summertime tropospheric ozone (O 3 ) pollution in the Colorado Front Range confirms that chemical vapors from oil and gas activities are a significant contributor to the region’s chronic ozone problem.
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.
The California Air Resources Board’s latest state inventory of greenhouse gas emissions shows that California’s GHG emissions continue to decrease. Compared to 2016, California’s GDP grew 3.6% These reductions have occurred while California’s economy has continued to grow. while the carbon intensity of its economy declined by 4.5%.
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. offer 12,924,822 2013 current vintage allowances and 9,560,000 year 2016 future vintage allowances for sale. Earlier post.)
million US Department of Energy (DOE) grant to demonstrate a pre-production Renewable Natural Gas (RNG) hybrid 4,300 hp line-haul locomotive. In several weeks, OptiFuel will start taking orders, in 49 of the US states, for a new line of affordable 800 hp to 3,200 hp, 100% natural gas freight and transit locomotives.
Without a nationwide ultra-low NO x emission standard, SCAQMD argues, California will not be able to meet the 2023 deadline for achieving the federally mandated 8-hour ozone standard, which was adopted in 1997 and set at 80 parts per billion. was recently certified by CARB and is expected to be commercially available mid-year 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. Between 2005 and 2014, the Bakken’s oil production jumped by a factor of 3,500, and its gas production by 180.
Concentrations of carbon dioxide in the atmosphere surged at a record-breaking speed in 2016 to the highest level in 800,000 years, according to the World Meteorological Organization’s Greenhouse Gas Bulletin. parts per million in 2016, up from 400.00 parts per million in 2016, up from 400.00 ppm in 2015.
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. —Dr Stanley. Resources. Stanley, D. Krummel, D.
Cummins Westport ISL G near-zero (NZ) natural gas engine ( earlier post ) meets and exceeds the certification standards during a full range of duty cycles. The engine was certified in the fall of 2016 by the EPA and the California Air Resources Board (CARB) to 0.02 g/bhp-hr emission target and averaged between 0.014 and 0.002 g/bhp-hr.
California’s latest greenhouse gas data shows that while the state continues to stay below its 2020 target for emissions, there is much more work to do to achieve carbon neutrality by 2045. California statewide GHG emissions dropped below the 2020 GHG Limit in 2016 and have remained below the 2020 GHG Limit since then.
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).
As a result, the market share of GDI-equipped vehicles has increased dramatically over the past decade and is expected to reach 50% of new gasoline vehicles sold in 2016. Measurements include gas- and particle-phase emissions, particle number, particle size distributions, and speciated NMOG emissions. Credit: ACS, Saliba et al.
20 % of stations registered concentrations above the EU ozone (O 3 ) target value for the protection of human health. Poor air quality continues to damage Europeans’ health, especially in urban areas, with particulate matter (PM), nitrogen dioxide (NO 2 ) and ground-level ozone (0 3 ) causing the largest harm.
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. Standards for fine particulate matter were exceeded in 118 counties.
Data from the Haifa municipality shows that until January 2016, some 600 heavy vehicles (more than 12 tons) would be on the roads in downtown Haifa every day during rush hour. As of March 14, 2016, they already handed out 192 tickets to violators, totaling NIS 96,000 (US$24,768) in fines.
The major sources of methane in California are livestock (~30% of the state’s methane emissions), followed by landfills and oil and gas production. Methane is 72 times more efficient at trapping heat in the atmosphere than CO 2 , which is the most prevalent global warming gas. CO 2 remains in the atmosphere for up to a century.
Regarding future Greenhouse Gas (GHG) emission regulations (Pavley 2), staff is evaluating studies of the feasibility and cost of advanced technologies to reduce GHG emissions that could achieve widespread sales and acceptance in the 2017-2025 timeframe.
The top set of recommendations call for: Replacing existing switch and medium horsepower locomotives with cleaner locomotives (2010-2013); Retrofitting switch and medium horsepower locomotive with particulate matter and oxides of nitrogen (NO x ) after-treatment devices (2012-2016); and. NO x helps create ground-level ozone, or smog.
million shares of an almost $3 billion settlement in 2016 between the U.S. Almost half the new buses are fueled by cleaner-burning propane or compressed natural gas; the others are cleaner-burning diesel engines. Nitrogen oxides and sulfur dioxides are precursor chemicals that, combined with sunlight, create ground-level ozone.
The California Air Resources Board released the draft proposed first update to the AB 32 Scoping Plan, which guides development and implementation of California’s greenhouse gas emission reduction programs. The Air Resources Board is required to update the Scoping Plan every five years.
The Draft Action Plan is available now for stakeholder and public feedback through 6 July 2016. Many of these pollutants are emitted in close proximity to communities and pose health risks to nearby residents, highlighting the need for additional steps to protect public health.
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