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This decline was due almost entirely to a drop in coal consumption. Coal-fired power generation fell by a record 18% year-on-year to its lowest level since 1975. An increase in natural gas generation offset some of the climate gains from this coal decline, but overall power sector emissions still decreased by almost 10%.
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.
In contrast to the “green light” for coal-to-NG substitution for power generation, the authors suggest that climate benefits from vehicle fuel substitution are uncertain (gasoline, light-duty) or improbable (diesel, heavy-duty). found benefits from NG use in transport at leakage rates below 1.7% Alvarez et al.
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.
Plastics are on track to contribute more greenhouse gas emissions than coal plants in the US by 2030, according to new report by Beyond Plastics, a nationwide project based at Bennington College in Vermont. This report represents the floor, not the ceiling, of the US plastics industry’s climate impact. million tons of GHG each year.
In the Reference case, all the growth in liquids use is in the transportation and industrial sectors. In the transportation sector, in particular, liquid fuels continue to provide most of the energy consumed. Despite rising fuel prices, use of liquids for transportation increases by an average of 1.1%
UK-based B9 Coal, established in 2009 with the objective of developing projects combining Underground Coal Gasification (UCG) with Carbon Capture and Storage (CCS) and alkaline hydrogen fuel cells, is bringing together a consortium including WSP Group, AFC Energy and Linc Energy to develop such a project.
Natural gas will play a leading role in reducing greenhouse-gas emissions over the next several decades, largely by replacing older, inefficient coal plants with highly efficient combined-cycle gas generation, according to a major new interim report out from MIT. The first two reports dealt with nuclear power (2003) and coal (2007).
The large decline in emissions, achieved before the COVID-19 crisis, was mainly due to reduced coal use for power generation. The official data, submitted on behalf of the EU to the United Nations Framework Convention on Climate Change (UNFCCC), show that EU Member States managed to reduce collectively their emissions by 3.8%
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. The climate effects of hydrogen have been an under-researched topic.
This decrease was driven largely by a decrease in emissions from fossil fuel combustion resulting from a decrease in total energy use in 2019 compared to 2018 and a continued shift from coal to natural gas and renewables in the electric power sector. Transportation. CO 2 emissions decreased 2.2% from 2018 to 2019. over the same period.
The EEA report ‘ Electric vehicles from life cycle and circular economy perspectives ’ reviews current evidence on electric cars’ impacts on climate change, air quality, noise and ecosystems, compared with conventional cars. The EEA has also published a new briefing on the environmental and climate impacts of transport.
The researchers found that while EVs do offer a very promising solution to energy issues due to their replacement of petroleum fuels, for now “ the high pollution levels of coal-fired power plants will trade off EVs’ potential energy benefits in China ”. The power of EVs is electricity from the grid.
“Blue” hydrogen—produced through steam methane reforming (SMR) of natural gas or coal gasification, but with CO 2 capture and storage—is being described as having low or zero carbon emissions. Even if true though, the use of blue hydrogen appears difficult to justify on climate grounds. —Howarth and Jacobson.
Among the transportation-related elements of US President Barack Obama’s new climate action plan, which he is outlining today in a speech at Georgetown University, is the development of new fuel economy standards for heavy-duty vehicles post-2018. Preparing the US for the impacts of climate change. Earlier post.).
the distribution of black carbon in the atmosphere and determine its role in the climate system. Black carbon (BC) is the second largest man-made contributor to global warming and its influence on climate has been greatly underestimated, according to the first quantitative and comprehensive analysis of this pollutant’s climate impact.
In particular, a significant reduction in CO 2 emissions is expected to be achieved by replacing coal and natural gas as the main fuels for power generation. These technologies are aimed at generating electricity by co-firing ammonia at coal-fired power stations. Ammonia floating storage and regasification barge (A-FSRB).
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. Click to enlarge. However, the environmental impacts (e.g.,
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.
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)
The President’s Council of Advisors on Science and Technology (PCAST) released a letter to President Obama describing six key components the advisory group believes should be central to the Administration’s strategy for addressing climate change. Both approaches are essential parts of an integrated strategy for dealing with climate change.
Reducing emissions of black carbon soot and ground-level ozone would quickly make a considerable dent in the climate change 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: Climate Change Emissions. Earlier post.) Foreign Affairs.
Greenhouse gas (GHG) emissions across the European Union rose slightly in 2017, mostly because of the transport sector. The rise is mostly due to the increase of oil consumption from road transport. The energy sector was able to reduce its emissions due to the decreasing share of coal used to produce electricity and heat in the EU.
All large-scale energy systems have environmental impacts, and the ability to compare the impacts of renewable energy sources is an important step in planning a future without coal or gas power. In the journal Joule , Harvard researchers report the most accurate modelling yet of how increasing wind power would affect climate.
The IEA said that this reflects the continued domination of fossil fuels—particularly coal—in the energy mix and the slow uptake of other, lower-carbon supply technologies. Coal technologies continue to dominate growth in power generation. Around half of coal-fired power plants built in 2011 use inefficient technologies.
We found that converting biomass to electricity rather than ethanol makes the most sense for two policy-relevant issues, transportation and climate.” The net transportation output per hectare is larger for the bioelectricity case. Kilometers per crop hectare for switchgrass feedstock with a small SUV. Campbell et al.
In 2009, the carbon intensity of the electric power sector decreased by nearly 4.3%, primarily due to fuel switching as the price of coal rose 6.8% Increased use of natural gas in place of coal caused the sector’s carbon intensity to decrease. Transportation. Tags: Climate Change Emissions. Click to enlarge.
billion tonnes, their highest ever level, as the world economy rebounded strongly from the COVID-19 crisis and relied heavily on coal to power that growth, according to new IEA analysis. Coal accounted for over 40% of the overall growth in global CO 2 emissions in 2021, reaching an all-time high of 15.3 billion tonnes.
Most of the increase came from coal mining and from natural gas production and processing. Petroleum remained the largest fossil fuel source for energy-related CO 2 emissions, contributing 42% of the total, followed by coal with a 37% contribution. of total fossil fuel energy consumption in 2008, as compared with coal’s 26.8%.
MIT researchers have built a model to simulate long-range atmospheric transport of polycyclic aromatic hydrocarbons (PAHs). For emerging contaminants in the Arctic, we need to know more about their sources, environmental behavior, and transport pathways in order to regulate them more effectively. —Noelle Selin, lead researcher.
In this paper, we focus on the implications of growing shale gas production for the climate. If natural gas is abundant and less expensive, it will encourage greater natural gas consumption and less consumption of fuels such as coal, renewables and nuclear power. —Newell and Raimi.
In the course of their transformation paths towards climate-neutral steel making, thyssenkrupp Steel and HKM will require large and increasing quantities of hydrogen to produce steel without coal. Green hydrogen is a sustainable alternative to coal, oil and natural gas.
From the researchers’ point of view, this underlines the need to further reduce emissions of soot that is harmful to health and the climate, as the carbon-containing particles still contribute to health hazards and climate warming even over distances of several hundred kilometers. forest fires).
A NASA-led team of scientists has uncovered strong evidence that coal soot from a rapidly industrializing Europe caused the abrupt retreat of mountain glaciers in the European Alps that began in the 1860s, a period often thought of as the end of the Little Ice Age (LIA). —Painter et al. Something was missing from the equation.
Increased energy efficiency, nuclear energy and the growing contribution of renewable energy are not compensating for the globally increasing demand for power and transport, which is strongest in developing countries. Indexed global CO 2. emissions from fossil fuel use and cement production per sector (1970 = 100). Source JRC.
Factors such as size, population density, available fuels, types of businesses, climate, all play a role in both total and per capita emissions, the EIA noted. Examining 2010 energy-related CO 2 emissions from the transportation sector, the report found California was the top transportation emitter (214.0 mt CO 2 ).
Aviation climate change impacts pathway. An an example, they point out that an SPK fuel option with zero life cycle GHG emissions would offer a 100% reduction in GHG emissions but only a 48% reduction in actual climate impact using a 100-year time window and the nominal climate modeling assumptions in the paper.
The climate change 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 climate change. What are the multiple climate, health and crop-yield benefits (by region) of implementing the measures?
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 both plants, natural gas turbines power the equipment.
Peter Edwards, provide an overview of progress in the area of the conversion of carbon dioxide to synthetic transportation fuels (Carbon Capture and Conversion, CCC), its potential, and barriers to future progress. Major reductions in emissions from the transportation sector will necessitate a change in vehicle fuels.
This year is pivotal for international climate action—and it began with high hopes—but these latest numbers are a sharp reminder of the immense challenge we face in rapidly transforming the global energy system. But our numbers show we are returning to carbon-intensive business-as-usual.
This calculation includes all CO 2 emissions grouped under Scope 1 and 2 categories as set out by the Greenhouse Gas Protocol as well those associated with transporting material between production and refining sites. For the purposes of this analysis, emissions are classed as any anthropogenic sources of CO 2.
This article shows that including offsets in climate change legislation would likely make an emissions program more cost-effective by: (a) providing an incentive for non-regulated sources to generate emission reductions; and (b) expanding emission compliance opportunities for regulated entities. Assuming the offset is legitimate—i.e.,
Natural gas does not offer climate benefits compared to gasoline and diesel, and many biofuel pathways do not, either. Drivers of plug-in hybrid electric vehicles rely too much on the gasoline engine for this pathway to be a long-term climate solution, the ICCT said. Source: The ICCT.
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