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A multi-Hubbert analysis of coal production by Tadeusz Patzek at The University of Texas at Austin and Gregory Croft at the University of California, Berkeley concludes that the global peak of coal production from existing coalfields will occur close to the year 2011. Gt C (15 Gt CO 2 ) per year, according to the study.
The study will appear next month in the peer-reviewed journal ClimaticChange Letters. 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.
The amount of methane released into the atmosphere as a result of coal mining is likely approximately 50% higher than previously estimated, according to research presented at the recent annual meeting of the American Geophysical Union. The study is one of the first to account for methane leaking from old, abandoned mines.
The study, “Estimating US Government Subsidies to Energy Sources: 2002-2008”, found that fossil fuels benefited from approximately $72 billion over the seven-year period, while subsidies for renewable fuels totaled $29 billion. billion went to traditional sources—such as coal and oil—and $2.3 Of the fossil fuel subsidies, $70.2
A new report from the MIT Joint Program on the Science and Policy of Global Change shows the importance of all major nations taking part in global efforts to reduce emissions—and in particular, finds China’s role to be crucial. Eighty percent of those emissions came from coal, making China the consumer of about half the world’s coal.
A) CNG light-duty cars vs. gasoline cars; (B) CNG heavy-duty vehicles vs. diesel vehicles; and (C) combined-cycle natural gas plants vs. supercritical coal plants using low-CH 4 coal. Recent reports in the scientific literature and popular press have produced confusion about the climate implications of natural gas.
Projected changes in summer mean usable capacity of power plants in the US and Europe for the SRES A2 emissions scenario for the 2040s (2031–2060) relative to the control period (1971–2000). A study published in Nature ClimateChange suggests that thermoelectric power plants (i.e., Source: van Vliet et al.
The study was published online 24 May in the ACS journal Environmental Science & Technology. The study examined the fuel-cycle CO 2 , SO 2 , and NO x emissions of EVs in China in both current (2008) and future (2030) periods and compared them with those of conventional gasoline vehicles and gasoline hybrids. Credit: ACS, Huo et al.
A study led by Norwegian climate center CICERO has found that the global warming effect of leaked hydrogen is almost 12 times stronger than that of CO 2. Unlike exhaust from burning coal and gas that contains CO 2 , burning hydrogen emits only water vapor and oxygen. Sand et al. —Dr Sand The GWP100 of hydrogen. Sand et al.
Reducing emissions of black carbon soot and ground-level ozone would quickly make a considerable dent in the climatechange problem and would also contribute to public health and protect crop yields, according to an essay in the September/October issue of Foreign Affairs. Tags: ClimateChange Emissions. Earlier post.)
To achieve goals for climate and economic growth, “negative emissions technologies” (NETs) that remove and sequester carbon dioxide from the air will need to play a significant role in mitigating climatechange, according to a new report from the National Academies of Sciences, Engineering, and Medicine.
The Seattle City Council unanimously passed Resolution 31379 stating Seattle’s opposition to the transportation of coal through Seattle. There are currently four coal exports under permit review in the Northwest that collectively could increase US coal exports by 150 million tons of coal annually.
The base results from a study by a team at the Center for Transportation Research, Argonne National Laboratory indicate that shale gas life-cycle greenhouse gas (GHG) emissions are 6% lower than conventional natural gas, 23% lower than gasoline, and 33% lower than coal. Credit: ACS, Burnham et al. Click to enlarge.
CO 2 emissions from US coal-fired power plant could be phased out entirely by 2030 using existing technologies or ones that could be commercially competitive with coal within about a decade, according to a paper published online 30 April in the ACS journal Environmental Science & Technology. Credit: ACS, Kharecha et al.
A three-year study by a team of researchers based at MIT has concluded that fundamental changes are needed in the US energy-innovation system. The study was carried out at the MIT Industrial Performance Center and involved faculty and students from nine MIT departments. —Richard Lester.
A study by Mark Z. Even if you have 100 percent capture from the capture equipment, it is still worse, from a social cost perspective, than replacing a coal or gas plant with a wind farm because carbon capture never reduces air pollution and always has a capture equipment cost. —Mark Jacobson.
In regions where the share of coal-based electricity is relatively low, EVs can achieve substantial GHG reduction, the team reports in a paper in the ACS journal Environmental Science & Technology. According to the 12 th Five-Year Plan of the China Coal Industry (2011?2015)
Efforts to shift away from fossil fuels and replace oil and coal with renewable energy sources can help reduce carbon emissions but do so at the expense of increased inequality, according to a new study by researchers at Portland State University (PSU) and Vanderbilt University. —Julius McGee. —Julius McGee.
Overview of the bluegas catalytic coal methanation process. By adding a catalyst to the coal gasification system, GreatPoint Energy is able to reduce the operating temperature in the gasifier, while directly promoting the reactions that yield methane, (CH 4 ). Click to enlarge.
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. Air pollution in India resulted 1.67
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.
A study lead by researchers from the Institute of Applied Ecology, Chinese Academy of Sciences has found a 1.4-gigatonne The gap, noted the researchers in their open-access paper in Nature ClimateChange , is equivalent to Japan’s annual CO 2 emissions, the world’s fourth largest emitter, with 5% of the global total.
earlier post ), a new study by a team at Environmental Defense Fund finds that the climate impact of hydropower facilities varies widely throughout the world and over time, with some facilities emitting more greenhouse gases than those burning fossil fuels.
The climatechange 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.
—NCAR scientist Aixue Hu, a co-author of the study. Such islands are mainly a function of the heat collected and re-radiated by pavement, buildings, and other urban features, whereas the new study examines the heat produced directly through transportation, heating and cooling units, and other activities.
Increased availability of low CO 2 sources of electricity and hydrogen could counter-intuitively delay, rather than accelerate, a large-scale transition to an electric and/or hydrogen vehicle fleet, according to a new study by researchers from Ford Motor Company and Chalmers University of Technology in Sweden. Wallington et al. Resources.
Circle areas are proportional to values for (A and B) climatechange, (C and D) human health (values for population over age 30), and (E and F) agriculture. Methane and BC measures identified as mitigating climatechange and improving air quality which have a large emission reduction potential. Source: Shindell et al.
Coal-powered synthetic natural gas (SNG) plants being planned in China would produce seven times more greenhouse gas emissions than conventional natural gas plants, and use up to 100 times the water as shale gas production, according to a new study by Duke University researchers published in the journal Nature ClimateChange.
Oregon Governor Ted Kulongoski signed into law a series of bills constituting a climatechange package that includes a low carbon fuel standard (LCFS), a B2 mandate, and other transportation-related measures. The series of bills the Governor signed into law today include: House Bill 2186. Senate Bill 38. Senate Bill 101.
The five different fuel groups were those derived: from conventional petroleum; from unconventional petroleum; synthetically from natural gas, coal, or combinations of coal and biomass via the FT process; renewable oils; and alcohols. For CTL, life-cycle GHG emissions would roughly double.
The least expensive way for the Western US to reduce greenhouse gas emissions enough to help prevent the worst consequences of global warming is to replace coal with renewable and other sources of energy that may include nuclear power, according to a new study by University of California, Berkeley, researchers. —Daniel Kammen.
In response to the ongoing discussion about the reliability of the UN IPCC and the climate reports, a group of 55 leading Dutch scientists working in the field of climatechange, energy and the environment wrote an open letter. Errors in the IPCC climatechange report are being seized by some to discredit climate science.
Widespread climate-related impacts are occurring now in the US and are expected to increase. A product of the interagency US Global Change Research Program, the 190-page report was commissioned in 2007 and completed this spring. It is clear that climatechange is happening now. Source: USGCRP. Click to enlarge.
This is the finding of an independent study of steelmakers worldwide conducted by CRU Group, a global business intelligence firm specializing in metals manufacturing. There is a lot of inaccurate and misleading information about steelmaking, and we believe this independent study will help further our efforts to achieve a low carbon future.
In states (or countries ) with a high proportion of coal-generated electricity, the miles needed to break-even climb more. Their study found “emissions from cycling can be more than 30 times lower for each trip than driving a fossil fuel car, and about ten times lower than driving an electric one.”
Ceres recently released a new report concluding that coal-to-liquid (CTL) and oil shale technologies face significant environmental and financial obstacles—from water constraints, to technological uncertainties to regulatory and market risks—that pose substantial financial risks for investors involved in such projects.
Between 2012 and 2015, effective tax rates decline perceptibly in real terms in around half of the countries studied, implying small and probably unintentional steps away from the polluter pays principle. —“Taxing Energy Use 2018”. —“Taxing Energy Use 2018”.
The Administration said the United States will submit its 2025 target to the Framework Convention on ClimateChange as an “Intended Nationally Determined Contribution” no later than the first quarter of 2015. launching a new track on the interaction of energy and water (the energy/water ‘nexus’).
However, the study also concluded that given the current short payback period for investment demanded by the trucking industry, a number of the technologies that could enable such savings would not be adopted, absent regulation or a longer payback period. million barrels per day. The results are specific to long-haul trucks.
International bodies, including the International Energy Agency (IEA), have been clear: climatechange initiatives will fall short without nuclear power as part of the electricity supply mix. A single SMR of about 300 megawatts in size can prevent between 0.3 Spur SMR deployment elsewhere in Canada and abroad.
Aviation climatechange impacts pathway. A new study by researchers at MIT has found that factoring the non-CO 2 combustion emissions and effects into the lifecycle of a Synthetic Paraffinic Kerosene (SPK) aviation fuel can lead to a decrease in the relative environmental merit of the SPK fuel compared to conventional jet fuel.
million barrels per day from 2010 to 2040, including the production of both petroleum (crude oil and lease condensate, natural gas plant [NGPL], bitumen, extra-heavy oil, and refinery gains), and other liquid fuels (coal-to-liquids [CTL], gas-to-liquids [GTL], biofuels, and kerogen).
While natural gas can reduce greenhouse emissions when it is substituted for higher-emission energy sources, abundant shale gas is not likely to substantially alter total emissions without policies targeted at greenhouse gas reduction, according to a new study by two researchers at Duke University.
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