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The Rhodium Group, an independent research provider, estimates that, after a sharp uptick in 2018, US greenhouse gas (GHG) emissions fell by 2.1% 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. Coal-driven decline.
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.
US electric power sector CO 2 emissions have declined 28% since 2005 because of slower electricity demand growth and changes in the mix of fuels used to generate electricity, according to the US Energy Information Administration (EIA). Source: US EIA, US Energy-Related Carbon Dioxide Emissions , 2017.
The Covid-19 crisis in 2020 triggered the largest annual drop in global energy-related carbon dioxide emissions since the Second World War, according to IEA data, but the overall decline of about 6% masks wide variations depending on the region and the time of year. Many economies are now seeing emissions climbing above pre-crisis levels.
Global energy-related carbon dioxide emissions rose by 6% in 2021 to 36.3 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. In 2021 alone, China’s CO 2 emissions rose above 11.9 billion tonnes.
Life-cycle GHG emissions from fossil and alternative sources of electricity. Lead author Kharecha and colleagues note that current climate science indicates that atmospheric CO 2 concentrations, already at 387 ppm in 2009 and rising, need to be reduced to no more than 350 ppm. Credit: ACS, Kharecha et al. Click to enlarge.
New investment in wind, solar, and other clean energy projects in developing nations dropped sharply in 2018, largely due to a slowdown in China. The findings suggest that developing nations are moving toward cleaner power but not nearly fast enough to limit global CO 2 emissions. thousand terawatt-hours in 2018, up from 6.4
The goal of the agreement is to reduce the greenhouse gas (GHG) emissions in the ocean transportation of sustainable wood pellets. This will include the “Wind Challenger”, a cargo ship design with a hard sail, which would reduce emissions by harnessing wind energy.
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. They also estimated emissions caused by flooding the reservoir.
Further, according to Rystad Energy, Big Oil is expected to pump in $166B into new oil and gas ventures over the next five years, thus dwarfing the currently specified outlay of just $18B (less than 10% of capex) for solar and wind energy projects. Good case in point: Italian multinational oil and gas giant Eni S.p.A. 2 Total SA.
The ICCT has conducted a comprehensive global and temporal life-cycle assessment of GHG emissions from a variety of alternative passenger car powertrains and fuels. The life-cycle GHG emissions of cars registered in 2021 are compared with those of cars expected to be registered in 2030.
CicLaVia where public streets from Boyle Heights to Downtown, MacArthur Park to East Hollywood will be shut down to traffic and open to you and me emission free. My favorite part of this next CicLaVia is t he Bike Parade coming from my friends at Greenpeace and Sierra Club which they’re calling ROLL AGAINST COAL.
Energy company RWE and steel producer ArcelorMittal have signed a memorandum of understanding to work together to develop, build and operate offshore wind farms and hydrogen facilities that will supply the renewable energy and green hydrogen required to produce low-emissions steel in Germany.
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. Click to enlarge.
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 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. —“Electric vehicles from life cycle and circular economy perspectives”.
However, this research finds that it reduces only a small fraction of carbon emissions, and it usually increases air pollution. Wind replacing fossil fuels always reduces air pollution and never has a capture equipment cost. Wind replacing fossil fuels always reduces air pollution and never has a capture equipment cost.
The arrival of cheap battery storage will mean that it becomes increasingly possible to finesse the delivery of electricity from wind and solar, so that these technologies can help meet demand even when the wind isn’t blowing and the sun isn’t shining. trillion of that going to wind and solar and a further $1.5
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.).
billion—are attributable to corn-based ethanol, the climate effects of which are disputed. billion went to traditional sources—such as coal and oil—and $2.3 billion went to carbon capture and storage, which is designed to reduce greenhouse gas emissions from coal-fired power plants. Of the fossil fuel subsidies, $70.2
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.
CO 2 per capita emissions from fossil fuel use and cement production from the top 5 emitting regions. Global emissions of CO 2 increased by 3% last year, according to the annual report “Trends in global CO 2 emissions”, released by the EC Joint Research Centre (JRC) and the Netherlands Environmental Assessment Agency (PBL).
An offset is a measurable reduction, avoidance, or sequestration of GHG emissions from a source not covered by an emission reduction program. In this way, offsets would complement the more traditional emissions trading that can occur between two covered sources. what would have happened anyway).
Given current policies and regulations limiting fossil fuel use, worldwide energy-related CO 2 emissions rise from about 31 billion metric tons in 2010 to 36 billion metric tons in 2020 and then to 45 billion metric tons in 2040, a 46% increase over the 30-year span. Liquid fuels. trillion kilowatthours in 2010 to 5.5
Factors contributing to the growth in energy-related CO 2 emissions in 2010. US carbon dioxide emissions from the consumption of fossil fuels were 5,638 million metric tons carbon dioxide (MMTCO 2 ) in 2010, an increase of 3.9% This is the largest percentage increase in US energy-related carbon dioxide emissions since 1988.
The California Air Resources Board (CARB) announced that greenhouse gas emissions in California in 2016 fell below 1990 levels for the first time since emissions peaked in 2004—a reduction roughly equivalent to taking 12 million cars off the road or saving 6 billion gallons of gasoline a year.
The technology group Wärtsilä has issued a report ahead of COP26, the UN’s Climate Change Conference to be held in Glasgow this autumn, describing the environmental and economic opportunities for states that decarbonize rapidly. coal and gas), significantly reducing the overall levelised cost of electricity.
India’s energy landscape is at a pivotal crossroads, exemplified by the notable recent decline in coal- and gas-fired power generation, which in May 2025 marked the steepest year-over-year drop since COVID-19.
Global energy-related carbon dioxide emissions were flat for a third straight year in 2016 even as the global economy grew, according to the International Energy Agency. The data signal a continuing decoupling of emissions and economic activity. Global emissions from the energy sector stood at 32.1
US President Barack Obama said the US will cut net greenhouse gas emissions in the US by 26-28% below 2005 levels by 2025. Together, the US and China account for more than one third of global greenhouse gas emissions. The US and China jointly announced greenhouse gas (GHG) reduction targets. per year on average between 2020 and 2025.
US energy-related CO 2 emissions declined by 2.8% CO 2 emissions had increased by 2.9% Because of continuing trends in how much energy the US economy uses and how much CO 2 that energy use generates, energy-related CO 2 emissions in 2019 fell more than energy consumption, which declined by 0.9%
We found that converting biomass to electricity rather than ethanol makes the most sense for two policy-relevant issues, transportation and climate.” In terms of greenhouse gas emissions, they found that the average net offset for bioelectricity generated from switchgrass is 108% greater (SE = 28%) than the offset for switchgrass ethanol.
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). GHG emissions (grams CO 2 -eq)/VMT by life-cycle component for different combinations of fuels and light-duty automobiles in 2005 (top) and 2030 (bottom). Click to enlarge.
For example, states in the western US (WUS) generally produce a larger fraction of their electricity from renewable and/or “emission-free” sources (i.e., solar, wind, hydroelectric, and nuclear) as compared to the eastern US (EUS), where the electricity market is dominated by pollutant and precursor emitting combustion sources (i.e.,
In both the base-case and a scenario with more aggressive environmental policies, CO 2 emissions from energy use remain well above the IEA 450 scenario. However, both cases result in global CO 2 emissions well above the IEA 450 scenario—a back-cast which illustrates what is required to stabilize greenhouse gas concentrations at 450 ppm.
The new report, part of the World Energy Outlook (WEO) 2011 series, examines the key factors that could result in a more prominent role for natural gas in the global energy mix, and the implications for other fuels, energy security and climate change. Source: IEA. Click to enlarge. MIT: The Future of Natural Gas. Earlier post.)
Russia-based Udokan Copper , the developer of Russia’s largest new copper deposit, outlined scenarios to cut the carbon intensity of copper production up to 75% by 2035, bringing the company closer to its ultimate goal of climate neutrality in the long run. In 2021, Udokan Copper invested RUB 764 million (US$11.5
Global CO 2 emissions from fuel use and cement production by region. Emissions increased by 1.7% Global CO2 emissions increased from 15.3 The lower increase in CO 2 emissions was mainly due to a decrease in global fossil oil consumption of about 0.6%, the first global decrease since 1992. Source: PBL. Click to enlarge.
Simple, effective solutions that can help lessen the impact of climate change already exist. Rahman, a power expert and professor of electrical and computer engineering at Virginia Tech , is the former chair of the IEEE ad hoc committee on climate change. One type is the ultrasupercritical coal-fired steam power plant.
CicLaVia where public streets from Boyle Heights to Downtown, MacArthur Park to East Hollywood will be shut down to traffic and open to you and me emission free. My favorite part of this next CicLaVia is t he Bike Parade coming from my friends at Greenpeace and Sierra Club which they’re calling ROLL AGAINST COAL.
If the US military increases its use of alternative jet and naval fuels that can be produced from coal or various renewable resources, including seed oils, waste oils and algae, there will be no direct benefit to the nation’s armed forces, according to a new RAND Corporation study. ” —James Bartis, lead author.
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 Climate Change.
A new study by a team from UC Berkeley and Stanford University suggests that determining the optimal use of biomass to reduce greenhouse gas emissions—i.e, suggested that converting biomass into electricity for EVs abates more GHG emissions than does converting biomass into liquid fuels for use in today’s conventional vehicles.
Trestle and Larksen’s integrated approach furthers ethanol producers’ ability to scale up production of low carbon biofuels and allows existing power plants to generate electricity with the cost and reliability of coal and with carbon emissions similar to wind.
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