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Global study shows uneven urbanization among large cities in the last two decades

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Due to the rapid economic growth in the study period, China invested a large amount of resources into infrastructure construction for advancing the urban living environment. Of the 841 cities studied, 325 showed significant greening with more than 10% of greening BUAs. billion and the urban population was 4.2

Global 433
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USC study shows promising potential for giant-kelp-based biofuel with depth-cycling approach

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Scientists at the USC Wrigley Institute for Environmental Studies on Santa Catalina Island, working with private industry, report that a new aquaculture technique on the California coast significantly increases kelp growth, yielding four times more biomass than natural processes. The researchers used a depth-cycling approach—i.e.,

Mariner 468
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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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The open-access paper on the study is published in the RSC journal Energy & Environmental Science. Taking IRENA’s REmap scenario as a reference, renewable hydrogen could deliver 5% of total final energy demand in 2050. Process flow diagram and construction phase boundary. Palmer et al. According to the IEA, less than 0.1%

Solar 459
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LLNL report lays out technology pathways for California to become carbon-neutral and then -negative by 2045; 3 pillars of negative emissions

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Lawrence Livermore National Laboratory (LLNL) scientists have identified a suite of technologies to help California to become carbon-neutral—and ultimately carbon-negative —by 2045. The key finding of this report is that carbon neutrality is achievable. —“Getting to Neutral”.

Carbon 269
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GWU team suggests C2CNT carbon nanotube composites could amplify reduction of GHG emissions

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Stuart Licht reports that the addition of carbon nanotubes (CNTs) produced from CO 2 by low-energy C2CNT (CO 2 to CNT) molten electrolysis ( earlier post ) to materials such as concrete or steel not only forms composites with significantly better properties, but amplifies the reduction of CO 2. A) Carbon mitigation with CNT-cement. (B)

Carbon 249
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Study finds emissions from road construction could be halved using today’s technology

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Researchers from Chalmers University of Technology and the University of Gothenburg studied the construction of an 8km stretch of road in detail and calculated how much emissions can be reduced now and until 2045, looking at everything from materials choice, production technology, supply chains and transport. Karlsson et al. 2019.109651.

Emissions 243
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LR and UMAS publish techno-economic assessment of zero-carbon fuels for shipping

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The technology feasibility (technology readiness) of the vessel and bunkering technologies needed to support zero-carbon-fueled ships. The technology feasibility (technology readiness) of the vessel and bunkering technologies needed to support zero-carbon-fueled ships. —“Techno-economic assessment of zero-carbon fuels”.

Carbon 243