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United Airlines officials in Chicago have strengthened their commitment to ensuring United is an environmentally conscious carrier by expanding its contract with Boston-based World Energy and agreeing to purchase up to 10 million gallons of commercial-scale, sustainable aviation biofuel over the next two years. United currently uses the biofuel to help sustainably power every flight departing out of its Los Angeles Airport (LAX) hub and achieve more than a 60 percent reduction in greenhouse gas emissions on a lifecycle basis, officials say.

While GAC member companies have led the industry in introducing alternative propulsion technologies to reduce greenhouse gas emissions and the GAC supports “de-carbonizing” transportation, the organization says that there has been no modelling done to gauge the impact on the Canadian automotive sector.

In reviewing Obama-era vehicle-emissions standards dictated aggressive fuel-economy standards for the years 2022-2025, the U.S. EPA said that in light of current market conditions and consumer preferences, the regulations should be revised.

Mahle prototype single-cylinder natural gas engine

Just down the road from SAE International’s headquarters in Warrendale, Pennsylvania, Mark Sokalski has been quietly working out how to maximize piston-driven engine efficiency – with an internal combustion engine mechanism that doesn’t follow the norm.

Bye Aerospace completed the first flight of its solar electric technology demonstrator prototype. The first flight – on August 20 – and subsequent flight tests occurred at Northern Colorado Regional Airport and will provide crucial flight data required for the development of Bye Aerospace’s “StratoAirNet” and “Solesa” families of medium-altitude aircraft systems.

Demand for high-performance plastics (HPPs) is up across the aerospace industry, driven by such key trends as growing performance requirements, increased use of additive manufacturing or 3D printing, supply chain globalization, and tightening environmental regulations. Growing passenger traffic coupled with the need to reduce emissions – being accomplished through lightweighting, engine downsizing, and vehicle electrification – present opportunities for HPPs, research analysts at Frost & Sullivan in San Antonio, Texas, explain.

As global emissions regulations tighten, the automotive and marine sectors lean into alternative-fuel development.

Looking beyond EVs at other systems that can garner net-zero capabilities.

OEMs and global suppliers are still betting big on hydrogen propulsion as a solution for decarbonizing the heavy-duty trucking industry.

Innovating the methanol fuel cell

Hydrogen fuels Wankel range extenders

SAE International has published a new recommended practice for assessing the amount of nonvolatile particulate matter (nvPM) that exits aircraft engine exhaust nozzles – ARP6481: Procedure for the Calculation of Non-Volatile Particulate Matter Sampling and Measurement System Losses and System Loss Correction Factors