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IEA: global carbon dioxide emissions have rebounded strongly

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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. Emissions in the United States fell by 10% in 2020.

Emissions 433
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Monash study on solar-driven electrolysis for green hydrogen production cautions on life-cycle emissions and EROI

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Researchers at Monash University in Australia have conducted a lifecycle analysis and net energy analysis (LCA/NEA) of a hypothetical large-scale solar-electrolysis plant for the production of green hydrogen. solar generation exceeding electrolyzer capacity). Process flow diagram and construction phase boundary. Palmer et al.

Solar 459
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All-in-one solar-powered tower makes carbon-neutral kerosene in the field at pilot-scale

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We are the first to demonstrate the entire thermochemical process chain from water and CO 2 to kerosene in a fully-integrated solar tower system. Previous attempts to produce aviation fuels through the use of solar energy have mostly been performed in the laboratory. B) Photograph of the solar tower fuel plant during operation.

Solar 446
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Audi Hungaria starts operation of Europe’s biggest solar roof installation

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Audi Hungaria is thus the second of five Audi sites (after Audi Brussels) to achieve a neutral carbon balance, according to the company. We have a clear aim: that all Audi sites will have carbon-neutral operation by 2025. The remaining heat is generated through natural gas, with carbon neutrality assured thanks to bio-gas certificates.

Audi 435
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Carbon emissions from generating electricity for electric vehicles vary greatly across the individual US states

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by Michael Sivak, Sivak Applied Research The overall advantage of battery electric over gasoline vehicles, in terms of well-to-wheels emissions of greenhouse gases, has been well documented. However, the emissions of electric vehicles depend greatly on the energy source used to generate the electricity that powers them. Natural gas 87.9

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EIA: CO2 emissions from US power sector have declined 28% since 2005

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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.

2005 414
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MIT researchers boost efficiency of carbon capture and conversion systems

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Researchers at MIT have developed a method that could significantly boost the performance of carbon capture and conversion systems that use catalytic surfaces to enhance the rates of carbon-sequestering electrochemical reactions. This output can help to subsidize the process, offsetting the costs of reducing greenhouse gas emissions.

MIT 413