On 4th May 2026 a petition was filed requesting the U.S. Environmental Protection Agency (EPA) to regulate harmful aerosol (microscopic particle) emissions from commercial aviation. Every year, commercial aviation injects about 747 million pounds (339 million kilograms) of sulfur into the upper troposphere and lower stratosphere, along with other pollutants – black carbon, metallic aerosols, and ultrafine particles (UFPs). Aircraft emissions are causing atmospheric alterations. In certain conditions contrails form artificial cloud cover, rainfall patterns are disrupted and a solar dimming haze impairs visibility and reduces the availability of sunlight for the human body’s production of vitamin D, crop growth and solar panels. Sulfates and metals from aviation exhaust eventually settle on land and water, contaminating agricultural soil and watersheds. People living near airports are particularly at risk of damage to their health from higher concentrations of aviation-induced pollutants in localised ‘acute toxicity zones’, which can extend several kilometres downwind of airports. Concentrations of UFPs near airports are ‘catastrophically elevated’; an increase in particle numbers of 100-900% over the background (regional baseline) level extending 18km downwind of Los Angeles International Airport (LAX) has been documented. Every claim in the petition is derived from peer-reviewed science and government agencies’ own studies and data. The petitioners are requesting a formal finding that emission of pollutants from civil aircraft endanger human health and welfare, binding emission and fuel standards, a public registry of aviation-related particulate emissions and mandatory contrail avoidance, with implementation to be coordinated by the FAA and Secretary of Transportation. If the EPA fails to issue a public response within 180 days the petitioners intend to seek a judicial review. Here is a link to the petition PETITION FOR RULEMAKING UNDER 5 U.S.C. § 553(e) AND CLEAN AIR ACT (CAA) § 231 REGARDING:AVIATION AEROSOL EMISSIONS, AVIATION-INDUCED CLOUDINESS (AIC) AND THE ENDANGERMENT OF PUBLIC HEALTH AND WELFARE There is also a helpful EXECUTIVE SUMMARY of the petition, translating the unavoidably complex legalese into plain English. Key people involved in the two years of work it took to develop this landmark legal action held a public webinar, see below, on the day it was submitted.
Campaigns
Local campaign against ‘aerospace business park’ on farmland next to Cardiff Airport
In Wales, UK, plans for an ‘aerospace business park’ on farmland next to Cardiff Airport are facing strong oppostion from locals. The land targetted for the development encompasses Model Farm, upon which the Jenkins family, having held the tenancy for three generations, since 1935, rear beef cattle and grow cereals and wildflower seeds that are sold throughout Wales. They were shocked when they were served with an eviction notice by the landowner: Legal & General, a financial services and asset management company. Within a short space of time a group aiming to save Model Farm, Vale Communities Unite, gained thousands of supporters and raised funds for legal fees to appeal the decision to grant permission decision. A protest was held outside the Senedd (Welsh Parliament) on 21st August 2021.
Gethin Jenkins said “We have been heartened by the local support we have had – people are aghast at the scale of what is planned.” Previously, he had told the Planning Committee: “Anything that will be built here, could also be built on a brownfield site within a three-mile radius. If you allow this development, you will not only be taking away my family’s farming future and my son’s home, you will be denying all future generations their right to see a vibrant countryside on their doorstep. One it’s built on, it’s gone forever.”
His son Rhys explained that his father had worked hard to create a productive farm, establishing a water supply including pipes and tanks in every field so that livestock could be kept in them. Improving soil condition was a long-term and complex project that had taken 60 years. Worried about the effects on his father and his future on the farm he said “I’ve grown up and thought I would farm, it’s all I wanted to do. It’s a kick in the teeth seeing my dad get upset. He’s worked his whole life, as has his father, to make the farm a success.”
Vale of Glamorgan Council Planning Committee had granted planning permission for the business park Despite more than 1,000 public objections. The prevalent reasons for objections were summarised as:
• Traffic congestion and lack of provision for new transport infrastructure
• Loss of farmland/ opposition to eviction of tenant farmer
• Detriment to local heritage assets
• Detriment to residents’ wellbeing and amenity
• Lack of need and justification the development, in this location
• Detrimental visual and landscape impact/ loss of open countryside
• Opposition to proposed Porthkerry Country Park extension
• Not sustainable/ will greatly contribute to climate change
• Nature/ habitat loss, detriment to ecology and biodiversity
• Loss of trees/ impact to ancient woodlands
• Local drainage infrastructure inadequate to accommodate development
• Flooding and contamination
• Opposition to illustrated Rapid Transit Corridor
• Procedural matters
The proposed business park site forms part of the Cardiff Airport-St. Athan Enterprise Zone, which the Local Development Plan states will provide a mixed use “airport city” development. In September 2021 the business park plan was stalled; Vale of Glamorgan Council quashed planning permission, accepting that Viability Information had not been included as it should have been within the Officers’ Report. The planning permission decision will be subject to a judicial review and considered in court before the matter goes back to the planning committee for another decision. Councillor Andrew RT Davies welcomed the news, urging members of the planning committee to reject the application when it comes back before them. He said: “The decision to grant permission at Model Farm was a betrayal of Rhoose and surrounding villages, so I am extremely pleased it has been quashed.” Local resident and Vale Communities Unite campaigner Maxine Levett said: “We’re very happy, we feel very relieved and very ecstatic that we have got to this point. We feel we have had some justice from the dismissive way that planning was conducted.”
This case of community resistance to an airport-related development is documented on EJAtlas, the world’s largest online database of social conflict around environmental issues: Business park on farmland next to Cardiff Airport, UK
Since the judicial review was announced the developers have resubmitted the business park plans.
VICTORY ! and an invite to celebrate
On the 17th of December Frances prime minister went onto live TV, with the minister of interior on his right hand side and that of the environment on his left. He was going to finally announce the government’s decision about the airport of Notre-dames-des-Landes and the fate of Europe’s largest defensive land occupation, the ZAD. The destructive infrastructure project, on the western edge of France, has been resisted since its inception 50 years ago, and over the last decade it’s 4000 acres of land have been squatted and turned into a giant laboratory of commoning, with over 100 living spaces and several hundred people occupying and working the land.

The airport has been a thorn in the side of every French government that has ever tried to build it. The prime minister Eduard Phillipe spoke for twenty minutes, the cameras whirled and he tried to remain calm as he announced…
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