Ongoing emissions from
… aviation growth
MORE FLIGHTS
• Daily CO₂ emissions generated by the global aviation sector, 2019-2025
https://www.reddit.com/r/dataisbeautiful/comments/1stmmf1/daily_co₂_emissions_generated_by_the_global/
… greenwashed fuels and engines
On a planet already dangerously hot, just stopping new emissions won’t make us safe. The CO2 already in the atmosphere must also be cut. So using existing CO2 — whether in plants (biofuel), in waste, or via Direct Air Capture combined with hydrogen electrically extracted from water (e-fuels) — to create new CO2 emissions, the so called net zero, carbon neutral technologies and pathways, is totally counterproductive. As are offsets for the same reason.
‘SUSTAINABLE’ AVIATION FUELS
The aviation industry uses marketing greenwash and accounting tricks to mislead you into thinking that actual flight emissions from ‘Sustainable’ Aviation Fuel (SAF) are a fraction of those from fossil jet fuel. A jet never burns pure SAF, so a common 50:50 blend with fossil jet fuel doubles claimed emissions. And actual flight CO2 emissions are additionally more than claimed, by the amount of CO2 drawn down in making the fuel. Furthermore SAF still creates non-CO2 emissions twice as warming as actual flight CO2 emissions.
• Biofuels could bolster Australia’s fuel security but right now, we’re exporting what we need to make them
https://www.abc.net.au/news/2026-04-15/biofuels-potential-to-bolster-australias-fuel-security/106511646
• Is making biofuels from canola the solution to Australia’s future jet fuel shortages?
https://www.abc.net.au/news/science/2026-04-19/are-saf-biofuels-solution-to-jet-fuel-shortages/106551088
• UK ‘green’ jet fuel imports linked to illegal Amazon deforestation
https://unearthed.greenpeace.org/2026/04/10/uk-green-jet-fuel-amazon-deforestation/
• Aviation: inconvenient truths
https://traveltomorrow.com/aviation-inconvenient-truths/
• Waste cooking oil offers a viable alternate to cut carbon emissions by aircraft
https://www.tribuneindia.com/news/india/waste-cooking-oil-offers-a-viable-alternate-to-cut-carbon-emissions-by-aircraft-study/
• Turbulence ahead: How used cooking oil could hinder aviation’s green fuel hopes
https://www.straitstimes.com/world/turbulence-ahead-how-used-cooking-oil-could-hinder-aviations-green-fuel-hopes
• Vietnam’s aviation authority pushes shift to greener operations
https://vir.com.vn/vietnams-aviation-authority-pushes-shift-to-greener-operations-151029.html
• Producing synthetic fuels at fossil fuel prices: a game changer from Synhelion
https://www.solarpaces.org/producing-synthetic-fuels-at-fossil-fuel-prices-a-game-changer-for-a-resilient-and-sustainable-energy-supply/
• Lowering the Carbon Intensity of Ethanol-to-Jet Aviation Fuel
https://www.rff.org/publications/issue-briefs/lowering-the-carbon-intensity-of-ethanol-to-jet-aviation-fuel/
… non-CO2 emissions
• Substantial aircraft contrail formation at low soot emission levels
https://www.nature.com/articles/s41586-026-10286-0
• ICAO Receives Large Number Of Applications For Aviation Carbon Market Phase 2
https://carbonherald.com/icao-receives-large-number-of-applications-for-aviation-carbon-market-phase-2/
• Here’s what we know about the climate cost of white trails aircraft leave in the sky
https://theconversation.com/heres-what-we-know-about-the-climate-cost-of-white-trails-aircraft-leave-in-the-sky-279505
• European aviation non-CO2 research report highlights uncertainties and knowledge gaps
https://www.greenairnews.com/?p=8914
• Contrails and SAF: what flight testing reveals about aviation’s hidden climate impact
https://www.aerospacetestinginternational.com/features/contrails-and-saf-what-flight-testing-reveals-about-aviations-hidden-climate-impact.html
… delusional reduction scenarios
OFFSETS/CARBON CREDITS
When all sectors need to reduce their emissions to zero, the aviation industry buys/offsets the reductions of others in order to grow its own emissions. When the planet is already dangerously hot, offsets steal carbon drawdown needed to cool the planet to excuse further emissions.
• CORSIA explained: what the aviation carbon scheme is and what recent developments mean for the market
https://www.climateimpact.com/news-insights/insights/corsia-explained-what-the-aviation-carbon-scheme-is-and-what-recent-developments-mean-for-the-market/
• Brussels weighs CORSIA credit curbs that could leave EU airlines facing Phase 1 scarcity
https://carbon-pulse.com/504894/
CORSIA
• Recognised by ICAO for CORSIA-eligible fuels
https://iscc-system.org/certification/certification-schemes/iscc-corsia/
• CORSIA ‘standoff’ continues between supply and demand as uncertainty clouds market
https://carbon-pulse.com/505534/
• Corsia debate heats up with EU draft
https://www.argusmedia.com/en/news-and-insights/latest-market-news/2819017-carbon—in-focus-corsia-debate-heats-up-with-eu-draft
• EU ponders excluding REDD+, many stoves credits from Corsia list
https://www.qcintel.com/carbon/article/eu-ponders-excluding-redd-many-stoves-credits-from-corsia-list-63226.html
• ICAO stalls Zimbabwe’s bid to sell into Corsia
https://www.qcintel.com/carbon/article/exclusive-icao-stalls-zimbabwe-s-bid-to-sell-into-corsia-63383.html
• European Commission plans to use Article 6 as “benchmark” for eligible CORSIA carbon credits in EU
https://carbon-pulse.com/506304/
• 20+ industry and civil society organisations call on the EU to include all departing flights in the EU carbon market
https://www.transportenvironment.org/articles/20-industry-and-civil-society-organisations-call-on-the-eu-to-include-all-departing-flights-in-the-eu-carbon-market
NET SERO 2050
Net zero emissions by 2050 allows ongoing emissions and subtracts from them carbon drawdown needed to cool an already dangerously hot planet.
• Delta Air Lines scales back sustainable fuel and net-zero targets
https://www.reuters.com/sustainability/climate-energy/delta-air-lines-scales-back-sustainable-fuel-net-zero-targets-bloomberg-news-2026-04-14/
• Net-zero aviation needs up to $1 trillion in carbon offsets by 2050
https://www.newscientist.com/article/2356840-net-zero-aviation-needs-up-to-1-trillion-in-carbon-offsets-by-2050/
• On Earth Day, World Airlines Are Still Far Behind Their Green Goals
https://www.forbes.com/sites/michaelgoldstein/2026/04/21/on-earth-day-world-airlines-are-still-far-behind-their-green-goals/
• JAL Group Achieves FY2025 Green Transformation Target
https://press.jal.co.jp/en/release/202604/009507.html
SO-CALLED EFFICIENCES
• Why Planes Flying Like Geese Could Cut Back on Aviation Emissions
https://www.cntraveler.com/story/why-planes-flying-like-geese-could-cut-back-on-aviation-emissions
• Austrian Airlines sets new standards in sustainable aviation with groundbreaking Aeroshark technology a game changer for the environment
https://www.travelandtourworld.com/news/article/austrian-airlines-sets-new-standards-in-sustainable-aviation-with-groundbreaking-aeroshark-technology-a-game-changer-for-the-environment/
• Aviation Innovation
https://link.springer.com/chapter/10.1007/978-3-032-07076-0_34
Aviation emissions and the war on Iran
• The Iran War Is Reshaping Global Aviation
https://www.swissinfo.ch/eng/the-iran-war-is-reshaping-global-aviation/91208671
• Europe warned of imminent jet fuel shortage risk
https://www.aviation24.be/organisations/aci-europe/europe-warned-of-imminent-jet-fuel-shortage-risk/
• Rising fuel costs reshape aviation and global tourism
https://eng.tourismandsocietytt.com/news-and-newsletter/2026/2026-april/ultimas-noticias/rising-fuel-costs-reshape-aviation-and-global-tourism
• Hawaii’s Aviation Fuel Problem: A Fragile Lifeline We Can’t Afford to Ignore
http://www.ililani.media/2026/04/hawaiis-aviation-fuel-problem-fragile.html
• Air transport fuels
https://www.iea.org/reports/sheltering-from-oil-shocks/air-transport-fuels
• Sustainability trends in the aviation industry in 2026 and possible head-winds from current geopolitical tensions
https://www.whitecase.com/insight-alert/sustainability-trends-aviation-industry-2026-and-possible-head-winds-current
Counting emissions
• Airlines should tell UK customers the carbon impact of flights, watchdog says
https://www.theguardian.com/environment/2026/feb/05/watchdog-urges-airlines-tell-uk-customers-carbon-impact-flights
Cutting emissions from
… legal challenges
• Court case challenges Oakland airport expansion plan
https://oaklandnorth.net/2026/04/13/court-case-challenges-oakland-airport-expansion-plan/
• Implications of the International Court of Justice’s Advisory Opinion on the Obligations of States in Respect to Climate Change for directors’ duties in relation to climate-related risks
https://icjdirectorsdutiesopinion.org
… alternative transport
RAIL
• Almost half of EU’s busiest flight routes are ‘hard or impossible’ to book on trains
https://www.theguardian.com/environment/2026/apr/21/almost-half-of-eus-busiest-flight-routes-are-hard-or-impossible-to-book-on-trains-report
The climate emergency
• 2026 On Track for Warmest Year
https://open.substack.com/pub/jimehansen/p/2026-on-track-for-warmest-year
• Current climate policies risk catastrophic societal and economic impacts
https://actuaries.org.uk/planetary-solvency
• Global biodiversity loss, ecosystem collapse and national security
https://assets.publishing.service.gov.uk/media/696e0eae719d837d69afc7de/National_security_assessment_-_global_biodiversity_loss__ecosystem_collapse_and_national_security.pdf
• Nature loss could cost twice as much as the financial crash, leaked report reveals
https://www.itv.com/news/2026-02-27/nature-loss-could-cost-twice-as-much-as-financial-crash-leaked-report-reveals
• Critical Atlantic current significantly more likely to collapse than thought
https://www.theguardian.com/environment/2026/apr/15/critical-atlantic-current-significantly-more-likely-to-collapse-than-thought
• A catastrophic climate event is upon us. Here is why you’ve heard so little about it
https://www.theguardian.com/commentisfree/2026/apr/23/catastrophic-climate-event-scientists-atlantic-system-collapse-billionaire-existential-crisis
