TagAviation Emissions(79)
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2024-02-01Aviation is a Health Issue
A February 2024 fact sheet from the Stay Grounded network warns that aviation poses serious health risks not just for the climate, but for people living near airports, under flight paths, and for cabin crew. Aircraft noise is linked to cardiovascular disease, cognitive impairment in children, sleep disturbance, and premature death, while burning jet fuel releases ultrafine particles that penetrate the lungs and bloodstream. The report calls for stricter noise regulations, limits on flight growth, and a halt to airport expansion as the most effective ways to protect public health. -
2024-01-28Aircraft Light Trails Over Night Sky
Long exposure photograph showing curved light trails of aircraft in flight against a dark night sky above a city horizon. The image captures the flight paths of multiple aircraft with their navigation lights creating streaking patterns through the darkness. -
Wingtip Vortices
An F-35 Lightning II stealth multirole fighter aircraft is photographed from below during flight, with visible wingtip vortices — condensation trails formed by low-pressure airflow at the wingtips. A caption label in the image explicitly identifies the aerodynamic phenomenon as 'Wingtip vortices.' -
350 Seattle Infographic on Aviation Emissions and Sea-Tac Airport Environmental Justice
An infographic published by 350 Seattle detailing aviation's environmental impact, including projected emissions growth to +1200% by 2050, environmental justice concerns around Sea-Tac Airport, and the claim that commercial aviation produced 918 million metric tons of CO2 in 2018. The infographic includes a map showing the 3km and 10km pollution radius around Sea-Tac Airport and calls for a reduction in aviation to meet climate goals. -
Fly Net Zero Logo
Logo for 'Fly Net Zero,' an aviation industry initiative promoting net-zero carbon emissions. The logo features bold blue text alongside a circular globe-like graphic rendered in blue tones. -
2023-09-04Net Zero Strategy Pie Chart — Aviation Emissions Reduction
A pie chart titled 'Our strategy towards net zero' outlines a combination of approaches to achieve net zero by 2050: 65% Sustainable Aviation Fuel (SAF), 19% Offsets and carbon capture, 13% New technology, electric and hydrogen, and 3% Infrastructure and operational efficiencies. No organizational logo or authorship is clearly visible in this cropped image. -
2023-08-23SeaTac International Airport: Trifecta for change
This presentation addresses environmental and health concerns surrounding Seattle-Tacoma International Airport, framing the issue as more than a mere noise nuisance by highlighting the health impacts of Jet A fuel pollution, specifically ultrafine particles. It outlines a 'Trifecta for Change' strategy that includes shifting public dialogue, engaging the University of Washington to study pollution prevalence, and building local, state, and federal partnerships to advance mitigation efforts. -
CFM RISE Open-Fan Engine vs. LEAP Enclosed-Fan Engine Comparison Infographic
Infographic from The Seattle Times (Mark Nowlin, sourced from SAFRAN) comparing the current LEAP enclosed-fan jet engine with the new RISE open-fan engine design proposed by Airbus and Boeing. The RISE engine eliminates the nacelle, uses larger 3D-woven composite fan blades and lighter engine core materials, and aims to reduce CO₂ emissions by at least 20%, with potential readiness by the mid-2030s. -
2023-05-02Contrails and their impact on climate
This Delta Air Lines presentation from the 2023 Aviation Noise & Emissions Symposium explains what contrails are, how they form, and why they matter for the climate. Contrails are line-shaped clouds created by aircraft engine exhaust or air pressure changes, forming through a rapid process in which exhaust particles become water droplets and then ice crystals within seconds. The presentation explores how to measure contrails' environmental impact and what solutions, including route adjustments, Delta is pursuing to reduce it. -
2023-05-02Unleaded aviation gasoline
Swift Fuels, a West Lafayette, Indiana-based company, presented on unleaded aviation gasoline at the Aviation Noise & Emissions Symposium 2023 at UC Davis. The company markets two premium unleaded avgas products: UL94, sold since 2015 with FAA STC approval and ASTM D7547 certification, and a forthcoming high-octane 100R formula. These fuels are designed as lead-free alternatives to conventional aviation gasoline, with approvals from both engine and airframe original equipment manufacturers.