contrails

By Helen Massy-Beresford
Against the backdrop of the COP29 conference taking place in Baku, Azerbaijan, a group of aviation and climate scientists is urging faster action on contrails.
Aircraft & Propulsion

By Guy Norris
Contrails from hydrogen-fueled aircraft may form more readily and be more widespread than those from jet-fueled aircraft but have less of a climate impact.
Emerging Technologies

By Graham Warwick
Business jets can create long-lasting contrails, but their altitude capability offers a solution.
Sustainability

By Helen Massy-Beresford
Airlines are looking at how data can help them mitigate contrails as a key way to reduce their environmental impact.
Airlines & Lessors

By Guy Norris
More research is needed to understand the climate impacts of aviation’s non-CO2 emissions ahead of the formulation of policy incorporating them into the ETS.
Sustainability

By Thierry Dubois
With the prospect of a favorable cost-benefit ratio, carriers start their own contrail prevention trials.
Emerging Technologies

By Thierry Dubois
GE Aerospace unit Aerospace Carbon Solutions has acquired Satavia, a UK-based company specializing in preventing the formation of contrails.
Aircraft & Propulsion

By Graham Warwick
Testing contrail avoidance; Spectrum for UAS control; Electrifying the King Air; Longer-lived batteries.
Emerging Technologies

By Thierry Dubois
French carrier Amelia has analyzed a dozen flight plans and modified some of them to prevent the formation of contrails as part of a broader Thales-led project.
Airlines & Lessors

By Graham Warwick
Power-dense motors; controls from high flyers; rechargeable thermal battery; in-space refueling port.
Emerging Technologies

By Helen Massy-Beresford
Modern commercial aircraft flying at high altitudes create longer-lived contrails than older aircraft, according to new research.
Aircraft & Propulsion

By Graham Warwick
Cryo-compressed hydrogen; Nullforming antenna; Contrail mitigation; Condensed battery flies.
Emerging Technologies

By Thierry Dubois
Airbus is conducting a flight-test campaign to study the water vapor exhaust from a hydrogen fuel cell system to understand if it will create a contrail.
Emerging Technologies

By Victoria Moores
Breakthrough Energy, a consortium of aviation stakeholders including seven airlines, is seeking EU funding for a large-scale contrail mitigation trial.
Sustainability

By Angus Batey
The system is intended to enable dispatchers, controllers and pilots to see which areas and contrail formation altitudes to avoid.
EBACE

By Helen Massy-Beresford
In Europe, the monitoring of non-CO2 emissions and their role in aviation’s environmental impact is a hot topic—and airlines are not all on the same page.
Aircraft & Propulsion

By Victoria Moores
IATA Director General Willie Walsh's comments come as the EU prepares for the start of mandatory non-CO2 reporting on Jan. 1, 2025.
Sustainability

By Thierry Dubois
Satavia is about to submit a scientific paper for peer review, about its approach and methods.
Emerging Technologies

By Thierry Dubois, Jens Flottau
Organizations are making progress but still debating the best way to prevent contrail formation.
Emerging Technologies

By Thierry Dubois
At stake is avoiding large quantities of CO2 emissions, as cirrus cloud-forming contrails total an estimated one-third of aviation’s harmful climate impact.
Aircraft & Propulsion

By Graham Warwick
Fuel systems for hydrogen; 3D printing on the Moon; LH2 tank breakthrough; the cost of avoiding contrails; and Velis Electro approved for training.
Aircraft & Propulsion

By Thierry Dubois
While avoiding the formation of contrails is an emerging priority for aviation in reducing its climate impact, cost has been a concern for operators.
Airlines & Lessors

By Thierry Dubois
Avoiding contrails remains up for debate. Some are already selling tools to carriers. Others argue more work is needed to mature solutions and standards.
Airlines & Lessors

By Victoria Moores
Contrail avoidance gains traction, but questions remain.
Aircraft & Propulsion

By Guy Norris
The agency and airframer are overcoming atmospheric and technical challenges to see how sustainable aviation fuel affects emissions and contrails.
Emerging Technologies