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Significant climate anomalies 2008/2009. Source: ClimateChange Compendium. The growth in carbon dioxide emissions from energy and industry has exceeded even the most fossil-fuel intensive scenario developed by the IPCC at the end of the 1990s. ClimateChange Science Compendium 2009. Click to enlarge.
The climatechange benefit is estimated for 2050 and human health and crop benefits are for 2030 and beyond. Black carbon and tropospheric ozone are harmful air pollutants that also contribute to climatechange. Click to enlarge. Full implementation of these measures would reduce future global warming by 0.5 °C
have developed a simulator able to predict tropospheric ozone concentrations across the whole of South and East Asia. The project was carried out in collaboration with Tsinghua University in China, The Energy and Resources Institute (TERI) in India, and the International Institute for Applied Systems Analysis (IIASA) in Austria.
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.
The system will graph lifecycle impact for a range of specified powertrains, for a large number of impact categories: Climatechange [kg CO 2 -eq.]. Depletion of fossil energy resources [kg oil-eq.]. Deterioration of the ozone layer [kg CFC-11-eq.]. Primary energy, non-renewable [Megajoule]. —Romain Sacchi.
The study will appear next month in the peer-reviewed journal ClimaticChange Letters. Relying more on natural gas would reduce emissions of carbon dioxide, but it would do little to help solve the climate problem. However, the effects of natural gas on climatechange have been difficult to calculate.
Aviation climatechange impacts pathway. 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. Credit: ACS, Stratton et al.
The researchers believe the measurements will substantially impact the understanding of atmospheric chemistry mechanisms—in particular, in the more rapid formation of secondary aerosols, important in the formation of local smog as well as in global climatechange. Carl Percival. —Welz et al. —Marston (2012).
It is an unpalatable truth that unless we can succeed in greatly reducing CO 2 emissions we are headed for a very uncomfortable and challenging climate future, and geoengineering will be the only option left to limit further temperature increases. SRM techniques act by reflecting the sun’s energy away from Earth—i.e.,
The California Energy Commission unanimously adopted the 2013-2014 Investment Plan Update to support the development and use of green vehicles and alternative fuels. Funding priorities through the ARFVT Program support fuel and vehicle development to help attain the state’s climatechange policies.
The US, Canada, and Mexico have submitted a proposal to strengthen climate protection under the Montreal Protocol— the international treaty that phases out the production of a number of substances responsible for ozone depletion. Climate protection from the Montreal and Kyoto protocols. Source: IGSD. Click to enlarge.
Maersk Container Industry (MCI) is calling for tougher enforcement of European environmental legislation designed to protect the Earth’s ozone layer and help prevent climatechange. And SuPoTec causes no harm to the Earth’s ozone layer, unlike HCFC141b. Nymand, CEO for Maersk Container Industry.
Source: “Hidden Costs of Energy”. That figure does not include damages from climatechange, harm to ecosystems, effects of some air pollutants such as mercury, and risks to national security, which the report examines but does not monetize. Source: “Hidden Costs of Energy”. Click to enlarge. Click to enlarge.
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.
Respectively, Title IV of the 1990 Clean Air Act and the Ozone Transport Commission/NO x Budget Program.). This was seen in overestimates of the value of allowances, which are permits to release a certain volume of emissions under a CTP. —Taylor 2012. Margaret R. 1113462109.
Decomposition of the decadal change in total global CO 2 emissions from fossil fuel combustion by four driving factors; population, income (GDP) per capita, energy intensity of GDP and carbon intensity of energy. Between 2000 and 2010, both drivers outpaced emission reductions from improvements in energy intensity.
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. —Michael Bergin.
eutrophication; ET = ecological toxicity; FEC = fossil energy consumption; WU = water use; LO = land occupation; “The rest” includes acidification; smog formation; ozone layer depletion; and human health effects. Error bar shows regional variations for E85. GW = global warming; Eut. Credit: ACS, Yang et al. Click to enlarge.
while the US GDP is projected to grow by 40%, according to the fifth National Communication on US climatechange actions submitted by the US Department of State to the United Nations Framework Convention on ClimateChange. The United States released previous Climate Action Reports in 1994, 1997, 2002, and 2006.
The emission scenario assumes that population and economic growth largely determine energy and food consumption and consequent pollution sources with the current technologies (“business as usual”). Northern India and the Arabian Gulf region, on the other hand, will suffer a marked increase in ozone levels.
In parts of Europe a large number of people are unable to keep their homes adequately warm because of poor-quality housing and the price of energy. Climatechange adaptation helps to prepare for increasingly frequent and extreme heatwaves. This is often supplemented by community or voluntary sector initiatives.
Waxman of the Energy and Commerce Committee and Chairman Edward J. Markey of the Energy and Environment Subcommittee on Tuesday released a draft of far-reaching energy and climate legislation that targets job creation, promotes renewables and energy efficiency, and places limits on emissions of greenhouse gases.
Selin and colleagues compared the health benefits to the economic costs of three climate policies: a clean-energy standard, a transportation policy, and a cap-and-trade program. In 2011, 231 counties in the US exceeded the EPA’s regulatory standards for ozone, the main component of smog. ClimateChange Emissions Health Policy'
A side event organized by the International Nitrogen Initiative (INI) at the COP-15 United Nations ClimateChange Conference in Copenhagen will highlight nitrogen’s role in climatechange. This massive alteration of the nitrogen cycle affects climate, food security, energy security, human health and ecosystem health.
The seven themes are: Taking Action on ClimateChange. EPA will also expand energy conservation and efficiency programs and continue to develop solutions for reducing GHG emissions from large stationary sources like power plants. Improving Air Quality.
NSF said that is chose a time span of several decades because within this timeframe modeled climatechange responses appear to be insensitive to CO 2 forcing scenarios. The nonlinear nature of these interactions greatly increases the complexity of the problem. Awards are expected to be in the range of $300,000 to $1,000,000 per year.
Specifically, in this action, NHTSA is affirming that its statutory authority to set nationally applicable fuel economy standards under the express preemption provisions of the Energy Policy and Conservation Act (EPCA) dictates that such state and local programs are preempted.
The US Environmental Protection Agency (EPA) has submitted its final Report to Congress on Black Carbon , in response to an October 2009 request from Congress to advance efforts to understand the role of black carbon (BC) in climatechange. Earlier post.). Earlier post.).
The cap-and-trade joins a suite of other major climate program measures including standards for ultra-clean cars (Advanced Clean Cars, earlier post ), low-carbon fuels (Low Carbon Fuel Standard, earlier post ) and renewable electricity. the destruction of existing stores of ozone-depleting substances in the U.S. business-as-usual.
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.
The cap-and-trade program also works in concert with other measures, such as standards for cleaner vehicles, low-carbon fuels, renewable electricity and energy efficiency, and complements and supports California’s existing efforts to reduce smog-forming and toxic air pollutants.
The figure includes the direct effects and those indirect effects due to the production of tropospheric ozone and stratospheric water vapor.) ClimateChange Emissions Natural Gas' Methane is more than 20 times as effective as CO 2 at trapping heat in the atmosphere—i.e., a global warming potential of 21.
Development of sustainable communities strategies can also provide an opportunity for associated criteria pollutant emission reductions that will be needed to attain air quality standards for ozone and particulate matter as well as reduce near-roadway exposures.
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 reason that the climate benefit exceeds 100%, the researchers explain, is the indirect effects obtained through increased recycling of nutrients reducing the need for fertilizers, and the increased recycling of organic matter to the soils. Pål Börjesson, researcher in Environment and Energy Systems at Lund University.
Approximately 70% of the reductions needed to meet the ozone standard in the South Coast in 2031 would come from existing or proposed regulatory actions. Reducing these pollutants can have a more immediate beneficial impact on climatechange, and reduces harmful toxins, such as cancer-causing particulates, in California communities.
Carbon dioxide and molecular oxygen molecules in the atmosphere absorb light energy at very specific colors or wavelengths. The OCO-2 instrument uses diffraction grating to separate the inbound light energy into a spectrum of multiple component colors. ClimateChange Emissions Research'
So far, ammonia has been considered as a fuel when blended with gasoline, diesel, hydrogen and methane fuels to reduce the proportion of carbon-based fuels and their emissions that contribute to climatechange. The researchers plan to next test if injecting air downstream of the combustor further reduces emissions.
R134a replaced CFC-12 as the MAC refrigerant in the early 1990s due to the negative impact of CFCs on the Earth’s ozone layer. Baker (2007) Demonstration of an Energy-Efficient Secondary Loop HFC-152a Mobile Air Conditioning System. Mahmoud Ghodbane, Timothy D. Craig, and James A.
Population growth, intensified agricultural practices, increases in land use and deforestation, industrialization and associated energy use from fossil fuel sources have all contributed to increases in concentrations of greenhouse gases in the atmosphere since the industrial era, beginning in 1750. parts per billion.
The leaders of the world have just returned from the UN's latest climatechange summit, COP26 , in which the countries that have signed on to the Paris Agreement upped their commitments to fight climatechange. IEEE Spectrum : What role does Silver Lining play in climate research or advocacy? In 2015, the U.S.
Life cycle inventories have typically been presented at global, national, or regional levels—sufficient for understanding global processes such as climatechange and fossil fuel depletion, but insufficient for the analysis of local processes such as air pollution, according to the researchers. —Tessum et al.
The program is designed to work in collaboration with other complementary policies that expand energy efficiency programs, reduce vehicle emissions, and encourage innovation. These protocols are based on those initially developed by the Climate Action Reserve (CAR) and its predecessor, the California Climate Action Registry (CCAR).
As we confront the enormous challenge of climatechange, we should take inspiration from even the most unlikely sources. Take, for example, the tens of thousands of fossil-fueled ships that chug across the ocean, spewing plumes of pollutants that contribute to acid rain, ozone depletion, respiratory ailments, and global warming.
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