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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.
These technologies include, but are not limited to, advanced aftertreatment and waste heat recovery; lean-burn plus lean-NO x emissions traps; integration of zero-emission miles technologies; further refinements in reducing friction and parasitic energy losses; and widespread utilization of renewable and natural gas and hydrogen blends.
the final version of the proposed First Update to the Climate Change Scoping Plan (First Update). Achieving our long-term climate goal and 2032 ozone standards will require a much deeper penetration of ZEVs into the fleet. The California Air Resources Board (ARB) has released. The draft version was released in February.
The electric bus fleet is anticipated to reduce ozone emissions by 1.1 The electric buses are powered by the City’s own San José Clean Energy source, contributing to the Airport meeting its sustainability goals in conjunction with Climate Smart San José. The airport, now in its 70 th year, serves more than 14.5
GWP100 weighted specific climate impact (g CO 2 -eq per pkm) as a function of vehicle occupancy. A team from Austria and Norway has found that the climate impact from a long-distance trip (500–1,000 km, or 310–621 miles) can easily vary by a factor of 10 per passenger depending on mode choice, vehicle efficiency, and occupancy.
A new study comparing both the absolute and normalized climate impacts of current passenger and freight transportation finds that driving a car increases global temperatures in the long run more than making the same long-distance journey by air.
The on-road transportation (ORT) and power generation (PG) sectors are major contributors to CO 2 emissions and a host of short-lived radiatively-active air pollutants, including tropospheric ozone and fine aerosol particles, that exert complex influences on global climate. Unger et al. Click to enlarge. Unger et al.
Those vertical movements provide a pathway for black carbon, sulfur dioxide, nitrogen oxides, and other pollutants to ascend into the stratosphere, about 20-25 miles above the Earth’s surface. This could explain satellite measurements showing high levels of stratospheric ozone, water vapor and other chemicals over Asia during summer.
A new study quantifying emissions from a fleet of gasoline direct injection (GDI) engines and port fuel injection (PFI) engines finds that the measured decrease in CO 2 emissions from GDIs is much greater than the potential climate forcing associated with higher black carbon emissions from GDI engines. —Saliba et al.
Health and other non-climate damages by life-cycle component for different combinations of fuels and light-duty automobiles in 2005 (top) and 2030 (bottom). Damages per vehicle mile traveled were remarkably similar among various combinations of fuels and technologies—the range was 1.2 Damages are expressed in cents per VMT (2007 USD).
Ethane reacts with sunlight and other molecules in the atmosphere to form ozone, which at the surface can cause respiratory problems, eye irritation and other ailments and damage crops. The Bakken is part of a 200,000-square-mile basin that underlies parts of Saskatchewan and Manitoba in addition to the two US states.
The figure includes the direct effects and those indirect effects due to the production of tropospheric ozone and stratospheric water vapor.) There were more than 1,231,000 miles of distribution mains in 2011, an increase of approximately 287,000 miles since 1990. Climate Change Emissions Natural Gas'
OCO-2’s science instrument, comprising three parallel high-resolution, near-infrared spectrometers in a common structure, will collect 24 measurements per second across a field of view of approximately three square kilometers, or one square mile. Climate Change Emissions Research'
Contributions of regions to total life cycle emissions for three fuels (µg per vehicle-mile traveled per km 2 land area). 60% of ground-level ozone (O 3 ) precursors, 6% of fine particulate matter (PM 2.5 ), and 22% of greenhouse gases (GHGs) emitted. Dashed lines show US average emissions. Credit: ACS, Tessum et al. Click to enlarge.
ARB staff developed this strategy using a multi-pollutant scenario planning tool ( Vision 2.0 ) that quantifies changes in ozone and PM 2.5 is the next generation of ARB’s first Vision scenario planning tool used for ARB’s D raft Vision for Clean Air: A Framework for Air Quality and Climate Planning published in 2012. Vision 2.0
The proposal retains the proven regulatory design of previous EPA standards for light-duty vehicles, but leverages advances in clean car technology to further reduce both climate pollution and smog- and soot-forming emissions. Mid roof tractor 68.2 High roof tractor 66.0
On their 100+ mile round trip, these trucks burn diesel fuel that damages the ozone, spews out noxious particulates that seek-out lungs and eyes along with oxides of nitrogen that help create smog, along with other nasty—and toxic—unpleasantness. More and more, especially the smaller “last mile” trucks, are powered by electricity.
Eliza Strickland: Man-made climate change is already reshaping our planet, and carbon emissions aren’t coming down fast enough to stave off real disaster in the decades to come. It’s often called geoengineering in the popular press, but the preferred term is climate intervention. Transcript. Kelly Wanser : Thank you, Eliza.
Squeezing Out That Extra Mile All-new for 2024, the Nautilus comes with two engine choicesa turbocharged 2.0-liter Squeezing Out That Extra Mile All-new for 2024, the Nautilus comes with two engine choicesa turbocharged 2.0-liter In 334 miles driving around Southern California we averaged 31.6 Lastly (will the fun never end?)
In 2004, the Centralina region (the Greater Charlotte metro area, which straddles the North CarolinaSouth Carolina border) was designated as a non-attainment area for ozone under the Clean Air Act. km (6 mile) section of the proposed rail line that lay outside Charlottes Mecklenburg County and would therefore not be funded by big city taxes.
What I do know, is how fossil fuel vehicles have contributed heavily to poor air quality in our towns and cities, damage to the environment, soil and water quality and have contributed to the depletion of the ozone layer! Maybe, by contrast the Tesla shouts ‘look I’m doing it!’
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.
The update identifies eight key sectors for ongoing action: Energy; Transportation, fuels, land use and infrastructure; Agriculture; Water; Waste management; Natural lands; Short-Lived Climate Pollutants (such as methane and black carbon); and Green Buildings. million zero emission vehicles on its roads by 2025. Low-Carbon Fuels.
It is possible to use gasoline C made with hydrated ethanol (AEHC) with minimum risk of phase separation due to Brazilian climate conditions. However, since the cost of the hydrous ethanol is significantly lower, hydrous ethanol will provide a lower cost per mile travelled, assuming the processing cost savings is passed on to the consumer.
In 2014, Volkswagen of America announced that starting with the launch of the zero-tailpipe emissions battery-electric 2015 e-Golf ( earlier post ), it would invest in projects to offset the carbon emissions created from the e-Golf on a full lifecycle basis: production, distribution and up to approximately 36,000 miles (57,936 km) of driving.
Meanwhile, environmentalists were voicing concern—about how noisy such aircraft are taking off, about the possibility that their high-altitude emissions would erode the ozone layer, and about how disruptive the sonic booms would be. 1,100 miles per hour) without producing a loud, disturbing sonic boom on the ground."
Benefits include meeting the state’s freight infrastructure, public health, air quality and climate goals. The Executive Order directs the state agencies to pursue a shared vision to “ improve freight efficiency, transition to zero-emission technologies and increase the competitiveness of California’s freight system.
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