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Tim Henderson

@syonist

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Latest posts by Tim Henderson @syonist

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And still an ostrich-like approach is adopted !
www.whatdotheyknow.com/request/aski...?

07.03.2026 10:40 👍 0 🔁 0 💬 0 📌 0
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This is what climate change looks like for UK winters.

03.03.2026 08:32 👍 5 🔁 3 💬 2 📌 0

" I have no idea what the price of other resources will be next year, whether uranium, gas or coal. But the price of wind, and marine I know - where there is a cost of construction, but where the fuel itself is free. This brings a lot of energy security."
Charles Hendry - June 2011 !

03.03.2026 09:16 👍 3 🔁 0 💬 0 📌 0

"The water companies operate a special filter system in Tegel. The reason is PFAS contamination of the groundwater around the former Tegel Airport, which has been known for some time. There, the fire brigade had used extinguishing foam containing PFAS chemicals for years."
And Heathrow / London ?

02.03.2026 21:23 👍 0 🔁 0 💬 0 📌 0

Expanding airport capacity without any meaningful reduction in emissions is bad for people and bad for the planet. 2/2

bsky.app/profile/did:...

02.03.2026 15:17 👍 1 🔁 2 💬 0 📌 0
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Airport expansion plan raises environmental questions for Dublin Plans to lift the 32 million passenger cap at Dublin Airport and prevent any future limit being introduced have sparked […]

As Irish Gov plans to lift Dublin Airport's passenger cap, @friends-earth.bsky.social speaks out: "Clean air and a safe climate are legal obligations, not optional extras,” this moves us toward more pollution & away from our climate targets. 1/2

dublinpeople.com/news/dublin/...

02.03.2026 15:17 👍 0 🔁 2 💬 1 📌 0
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Wonderful launch of the new West London Regional Park.

Spanning Ealing & Hounslow the new park will improve access to nature for 2 million Londoners - with the River Brent & a 13km walking trail forming its spine.

02.03.2026 15:57 👍 32 🔁 6 💬 1 📌 1

And his support of Heathrow and Gatwick expansion!

01.03.2026 19:24 👍 0 🔁 1 💬 0 📌 0
Heathrow Business Coalition Bringing Heathrow’s business community together with a common goal: to support the Government in delivering economic growth. When Heathrow thrives, so do businesses across the UK.

And in other net-zero news, on Tuesday Arup hosted the Heathrow Business Coalition presumably to support a thriving Heathrow and support the government in delivering economic growth, www.heathrow.com/company/abou...

26.02.2026 13:11 👍 0 🔁 0 💬 0 📌 0
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Water industry strategies to manufacture doubt and deflect blame for sewage pollution in England - Nature Water In the past 5 years, a huge amount of untreated wastewater has been released into English waterways. An analysis of the communication used by the water utilities shows that they have employed strategies used by large polluting industries in the past, prolonging the consequences of this environmental disaster.

Water industry strategies to manufacture doubt and deflect blame for sewage pollution in England
www.nature.com/articles/s44...

25.02.2026 10:24 👍 1 🔁 2 💬 0 📌 0
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Channel 4’s Dirty Business is a clarion call to nationalise the water industry As the drama shows, private firms no longer able to pollute the coast of England of Wales just switched to rivers instead

Channel 4’s Dirty Business is a clarion call to nationalise the water industry

As the drama shows, private firms no longer able to pollute the coast of England of Wales just switched to rivers instead
#DirtyBusiness
#Sewage

www.theguardian.com/environment/...

23.02.2026 22:38 👍 126 🔁 73 💬 5 📌 5
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At least, pending more information at Heyford Park, the Environment Agency recommends refusal.

22.02.2026 15:03 👍 1 🔁 1 💬 0 📌 0
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Not forgetting the PFAS from fire-fighting training. At least they have identified some contamination (but not enough sampling to assess how far a plume has spread).

21.02.2026 21:04 👍 2 🔁 0 💬 0 📌 0

"The scale of the task would be striking: depending on the pathway chosen, it could require diverting an area of land greater than the size of Co Tipperary for growing fuels and offsetting, or new electricity demand equivalent to more than current electricity usage."

16.02.2026 10:02 👍 5 🔁 5 💬 1 📌 0
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I wonder about wildfire risk in a dry part of the country with increased forestry cover in urban areas and skyscrapers made of wood. Must read more of the Mass Timber Insurance Playbook !

21.02.2026 18:21 👍 1 🔁 0 💬 0 📌 0
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Twenty Questions for Mega-project Developers Last year news was released of a private initiative to build a £100 billion, 45,000 acre city of 400,000 homes in the countryside east of the city of Cambridge. Upon hearing about the proposal, cal…

Just published in time for the Forest City “come and meet us in your local pub” Q&A sessions: Twenty Questions for Mega-project developers
#ForestCity1 #Development #Cambridge #Cambridgeshire #Suffolk
northwestnatureandhistory.co.uk/2026/02/19/t...

20.02.2026 08:16 👍 0 🔁 2 💬 1 📌 0
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Wouldn't be far from home ! Could you see the Marsh Farm sea embankment from the Prison sea wall ?

20.02.2026 20:34 👍 1 🔁 0 💬 0 📌 1

I'm waiting for the need to remediate the PFAS from historic fire fighting on the old Heyford airbase to be recognised. The concentrations in the stream towards Middleton Stoney topped the English rankings in the 2023 EA survey by quite a margin !

19.02.2026 20:21 👍 1 🔁 0 💬 1 📌 0
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LBA has made a new application to the Council to rewrite the night flight rules and make thousands more night flights. Bad news for local people, air quality and the climate. GALBA will fight this tooth and nail! Find out more and join us on our website: www.galba.uk/our-campaign...

17.02.2026 20:04 👍 5 🔁 5 💬 0 📌 0
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Yes - I'd reckon it is likely to be slowly coming out of the soil and rock. Here's a pic of the "Conceptual Site Model" for Dublin airport.

18.02.2026 20:30 👍 1 🔁 0 💬 0 📌 0

BBC headline utterly failing. ‘The saga of a £165m rail line that keeps causing travel chaos’

It’s not the rail line that “keeps causing travel chaos” its the shifting climate with more prolonged and intense rainfall and more frequent storms leading to landslips and the sea wall being washed out.

15.02.2026 23:49 👍 344 🔁 122 💬 11 📌 6
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At least the Planning Inspectorate have included PFAS in their Heathrow expansion scoping opinion and the Environment Agency have raised it as an issue.

16.02.2026 20:49 👍 1 🔁 0 💬 0 📌 0
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I first came across them when Heathrow devoted a chunk of their runway expansion environmental assessment to PFOS. Then they allocated a big sum in capital programme for "PFOS compliance". Awaiting news of how Environment Agency will permit their discharge to local rivers (?drinking water).

16.02.2026 10:04 👍 1 🔁 0 💬 1 📌 0
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In West London increase in urban hard surfaces have redirected rain to overflow the sewage works while the old Portlane Brook is empty for most of its length until Heathrow adds the flow from the airfield via sewer.

13.02.2026 17:23 👍 0 🔁 0 💬 0 📌 0
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The Planning Inspectorate Scoping Opinion put PFAS on the radar - but unfortunately Hillingdon Council didn't impose proper conditions for digging up the airfield and spreading soil for civil works for the current Easterly Alternation Project.

13.02.2026 12:27 👍 0 🔁 0 💬 0 📌 0
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Tim Henderson on X: "@NoManstonAPT @SouthernWater https://t.co/TCqdLFdHAC Some of those numbers from Sparrow Castle don't look good to me ! https://t.co/hEx8qZE96K" / X @NoManstonAPT @SouthernWater https://t.co/TCqdLFdHAC Some of those numbers from Sparrow Castle don't look good to me ! https://t.co/hEx8qZE96K

And Ramsgate probably suffers worse from years of foam carpeting the runways at Manston. twitter.com/syonist/stat...

13.02.2026 12:17 👍 1 🔁 0 💬 0 📌 0
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My London tap water is worse than levels demanded in some countries. And I'm waiting to see if Environment Agency is going to consult on what level of PFAS it will allow Heathrow to discharge into my local rivers.

13.02.2026 12:05 👍 6 🔁 7 💬 2 📌 0
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Subject to consultation ?
consult.defra.gov.uk/water/13-pro...
Get writing !

13.02.2026 10:50 👍 0 🔁 0 💬 0 📌 1
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NEW ANALYSIS: China's CO2 has now been 'flat or falling' for 21 months

* Down in 2025
* Still below Mar 2024
* Clean energy wave a key factor

If this is China's peak (TBC) it's the climate story of the century so far…

www.carbonbrief.org/...

12.02.2026 07:38 👍 1078 🔁 442 💬 21 📌 49
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Frequent Fryer - Royal Aeronautical Society Used chip fat has been suggested as one answer to sustainable aviation fuel shortages. CHARLOTTE BAILEY explores the scalability of cooking oil and asks: just how many portions do we need to eat apiec...

But as demonstrated by Charlotte Bailey, it would take 357,143 portions of chips to fuel a transatlantic Dreamliner with 60 tonnes of neat, unblended SAF.

To see Hannah Bailey’s full working out, check out this article: 2/2
www.aerosociety.com/news/frequen...

12.02.2026 10:14 👍 2 🔁 6 💬 1 📌 0