Sustainability
Patriotic Millionaires urges Scotland to set high private jet tax to cut luxury emissions
Patriotic Millionaires, a US advocacy group, urged Scottish ministers to impose a high tax on private jet travel to cut luxury emissions and raise public revenue.
Greenpeace UK Calls for Immediate Ban on Private Jets, Citing Ultra-Wealthy's Outsized Aviation Emissions
Greenpeace UK launched a campaign and petition urging the UK government to immediately ban private jets, saying the ultra-wealthy cause half of the world's aviation emissions.
China launches first SAF compliance service for foreign-registered business jets at Beijing Capital International Airport
Sino Jet, partnering with China National Aviation Fuel, launched China's first Sustainable Aviation Fuel compliance service for foreign-registered business jets at Beijing Capital International Airport.
Metafuels chief says SAF mandates are effective and costs will fall, eyes airline supply from 2030
Metafuels' chief executive said sustainable aviation fuel mandates are working and costs will fall, after the Swiss methanol-to-jet fuel producer opened its first demonstration facility and targets airline eSAF supply from 2030.
Australia's Stralis to Shut Down Hydrogen-Electric Air Taxi Startup by End of August 2026, Never Having Launched Passenger Flights
Australian hydrogen-electric startup Stralis will wind down operations by the end of August 2026 after completing its first taxi test in July but failing to close the gap to commercial readiness.
FAA Proposes Noise Certification Standard for Supersonic Aircraft, Aims to Enable Overland Supersonic Flight
The FAA proposed a noise-based certification standard for supersonic aircraft, part of a plan to finalize two related rules by mid-2027 and enable overland supersonic flight.
Whisper Aero Completes First Crewed Flights of Electric Swift 3 Glider in Tennessee
Whisper Aero flew a modified Swift 3 glider fitted with two eQ250 electric ducted fans in Crossville, Tennessee, completing three test flights totaling more than 130 minutes.
Electra Signs MOU with City of Helsinki and Haaga-Helia University to Study Direct Aviation Across Gulf of Finland
Electra signed a Memorandum of Understanding with the City of Helsinki and Haaga-Helia University on August 27, 2026 to study Ultra Short aircraft service across the 80-kilometre Gulf of Finland to Tallinn.
Boom Supersonic's XB-1 Demonstrator Breaks Sound Barrier as Overture Airliner Targets 2029 Service
Boom Supersonic's XB-1 demonstrator broke the sound barrier at Mach 1.122 over the Mojave Desert on January 28, 2025, advancing the 64-to-80-seat Overture airliner targeting 2029 commercial service.
Book-and-Claim Accounting Emerges as Key Mechanism for Corporations to Address Scope 3 Aviation Emissions via SAF Certificates
Book-and-Claim accounting is spreading as a way for corporations to buy tradable Sustainable Aviation Fuel Certificates covering Scope 3 emissions, with SABA committing nearly $200 million in April 2024.
Rolls-Royce and TCS Successfully Run Jet Engine on 100% Hydrogen Across Full Simulated Flight Cycle
Rolls-Royce and Tata Consultancy Services ran a modern aero gas turbine on 100% hydrogen through a full simulated flight cycle, completing a four-year development program.
Whisper Aero Completes First Powered Flights of eQ250-Equipped Glider at Crossville, Tennessee
Whisper Aero flew its Powered Swift, a modified Aériane Swift 3 glider with two eQ250 electric ducted fans, on three test flights totaling more than 130 minutes at Crossville, Tennessee.
FAA Discloses Fuel-Saving Single-Engine Cruise Feature in P&WC's In-Development PW220A Turboshaft
The FAA disclosed that Pratt & Whitney Canada's in-development PW220A turboshaft engine includes a fuel-saving feature letting a twin-engined helicopter cruise on a single active engine.
UK Hydrogen Energy Association warns weakening HEFA cap would undermine green hydrogen e-SAF demand
The UK Hydrogen Energy Association warned that weakening the 92.3% HEFA cap under the SAF mandate would delay demand signals for green hydrogen-based e-SAF, in its response to the DfT consultation.
American EcoFuels (OTC: AEFI) Issues Update on SAF Technology, Patent Expansion, and Uplisting Plans
American EcoFuels issued an August 26, 2026 update confirming its rebrand from Eco Innovation Group, full acquisition of Kepler GTL Technologies, and lab-scale production of SAF, SPK and clean diesel.
Electric passenger aircraft could enter commercial service between 2030 and 2035, industry figures say
Transport & Environment's Tom Taylor said electric passenger aircraft could enter commercial service on European short-haul routes between 2030 and 2035, subject to legislation keeping pace with technology.
EVA Air and AIT Worldwide Sign Deal to Promote Sustainable Aviation Fuel Partnership Targeting 15,000-Tonne Emissions Cut
EVA Airways and AIT Worldwide Logistics signed a Taipei agreement with Formosa Petrochemical and Microsoft expected to cut about 15,000 tonnes of Microsoft's Scope 3 emissions in the first year.
Swift Fuels Expands 100R Unleaded Avgas STC to Cover 1,200 Engine Models and 1,600 Airframes
The FAA expanded Swift Fuels' STC for its 100R unleaded avgas to cover more than 1,200 engine models and 1,600 airframe models.
Green Flyway and MD Aircraft Sign MoU to Develop Electric Aviation in Nordic Region
Green Flyway and German aerospace firm MD Aircraft GmbH signed a Memorandum of Understanding to accelerate electric aviation development, testing, and infrastructure across Mid-Scandinavia.
Electric Aircraft Market Forecast to Reach USD 49.27 Billion by 2034 at 13.2% CAGR
The global electric aircraft market is projected to reach USD 49.27 billion by 2034, growing at a 13.2% compound annual growth rate, with North America holding the largest regional share in 2025.
Execution, not technology, will determine whether sustainable aviation fuel scales, analysts say
Analysts said on August 25, 2026 that scaling sustainable aviation fuel now depends on execution rather than technology, as aviation accounts for roughly 2%-3% of global CO2 emissions.
FAA Issues First U.S. Hydrogen-Electric Engine Rules for ZeroAvia ZA601, Covering Regional Turboprops Not eVTOL
The FAA issued its first U.S. special conditions for certifying a hydrogen-electric aircraft engine, ZeroAvia's 600-kilowatt ZA601, for 19-seat regional turboprops.
UK Awards £7.2 Million to Eight Zero-Emission Aviation Projects
The UK government awarded £7.2 million across eight zero-emission aviation projects, including hydrogen refuelling, electric aircraft charging and contrail-reduction work at airports such as Bristol and Inverness.
NTU Completes Flight Testing of Singapore's Homegrown eVTOL After Three-Year R&D Programme
Nanyang Technological University completed flight testing of two Singapore-developed eVTOL demonstrators in Germany, logging close to 40 test flights and 43 and 108 minutes of flight time respectively.
FAA Releases Version 1.0 of Unleaded Avgas Transition Plan, Key Questions Remain Unanswered
The FAA published Version 1.0 of its unleaded avgas transition plan, keeping a four-phase timeline to eliminate 100LL by the end of 2030 outside Alaska while leaving fuel availability, cost and hardship provisions undefined.
Rolls-Royce Patents Hydrogen Fuel System for Gas Turbine Engine, Targets Small and Mid-Size Aircraft by Mid-2030s
Rolls-Royce has filed a patent for a hydrogen fuel delivery system for gas turbine engines, targeting small and mid-size aircraft from the mid-2030s.
IATA: Middle East War and 70% Jet Fuel Price Surge to Halve Global Airline Profits to $23 Billion in 2026
IATA cut its 2026 global airline net profit forecast to $23.0 billion, down from $45 billion in 2025, citing Middle East conflict disruptions and a nearly 70% jump in jet fuel prices to $152 per barrel.
SITA: Machine Learning Climb Optimization Saved 59,011 Tonnes of Fuel Across 1,137 A320 Aircraft in 2025
SITA's machine-learning climb optimization system saved 59,011 tonnes of fuel across 1,137 Airbus A320 family aircraft in 2025, averaging 73 kg per departure.
Jersey Airport Achieves Level 4 Airport Carbon Accreditation, Targets Net Zero by 2030
Jersey Airport received Level 4 transformation status under the Airport Carbon Accreditation programme, reflecting progress toward its target of net zero Scope 1 and Scope 2 emissions by 2030.
Midwest Agriculture and Aviation Leaders Discuss SAF Expansion at 2026 Global Aerospace Summit
A panel at the 2026 Global Aerospace Summit in Edwardsville, Illinois, on August 24, 2026 discussed sustainable aviation fuel opportunities for Midwest agriculture, featuring CoverCress CEO Jim Hedges and SAFII president Cindy Tomei.
Google joins UK government trial using AI to reduce aircraft contrails over North Atlantic
The UK government launched Operation Blue Skies, a trial using Google's AI forecasting platform to reroute up to 5% of flights over the Shanwick Oceanic Control Area to reduce contrail formation.
Leeds Bradford Airport Proposes Noise-Based Night Flight System and Resident Insulation Grants
Leeds Bradford Airport has proposed replacing movement-based night flight limits with a noise-based cap and redefined night hours of 11.30pm-5.59am, plus a resident insulation scheme including bedroom air conditioning.
Nova Pangaea seeks £30m after completing SAF trials in Teesside
Nova Pangaea Technologies is seeking £30 million after completing sustainable aviation fuel trials at its Teesside facility that achieved 72-hour continuous stable operation and above-target yields.
India to Host Second SAF Conclave in New Delhi on September 28
New Delhi will host the second Sustainable Aviation Fuel Conclave on September 28, expecting more than 1,000 delegates and over 100 speakers from more than 25 countries.
Australia's DCCEEW Launches Consultation on Proposed Sustainable Aviation Fuel Mandate
Australia's DCCEEW opened a public consultation on 18 August 2026 for a proposed SAF mandate, with Phase 1 volumetric targets running 2029-2035 and a top 2030 target of 450 million litres yearly.
VIVIFY Technology Launches Independent Validation Program for HOG™ Hydrogen Platform, Plans 2026 Data Publication
VIVIFY Technology has launched an independent validation program for its HOG hydrogen energy platform, testing a 65 kW turbine unit ahead of a planned 2026 data publication.
Nova Pangaea's REFNOVA waste-to-SAF process completes 72-hour endurance trials at Teesside demonstration plant
Nova Pangaea's REFNOVA process completed continuous production runs lasting up to 72 hours at its Teesside demonstration plant, a step toward commercial-scale waste-derived SAF feedstock output.