Systems thinker and futurist helping progress to a sustainable, equal and biodiverse world through research, commentary, training and engagement.

Cardiff, Wales
Joined June 2012
Cities are planting trees for aesthetics, which is where urban tree planting often fails. Most songbirds don't raise their chicks on berries or seeds. They raise them on insects, especially caterpillars. One nest of chickadees can need thousands before the young birds fledge. Many common street trees are chosen because they are tidy, tough, symmetrical, disease-resistant, and ignored by bugs. Ginkgos, zelkovas, Bradford pears, London planes, ornamental cherries. Useful in some ways, but weak as bird habitat. 'Bugs leave it alone' is not a wildlife feature that any of us should be chasing. It is a food-web failure. Native oaks can support hundreds of species of moth and butterfly caterpillars. Those caterpillars become chickadees, wrens, warblers, cardinals, vireos, and woodpeckers. Research on suburban chickadees found yards needed roughly 70% native plant biomass to support successful breeding populations. Now look at the average streetscape: ornamental trees, mulch islands, mowed turf, imported shrubs. From a car, it looks green. To a nesting bird, it can be a food desert. Cities should absolutely plant for shade, heat, drought, salt, pollution, root space, and survival. A dead native tree helps nobody. But when we plant trees, the question cannot just be 'Will this survive?' It has to be 'Will this feed anything?' What is your city planting?
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🎉£1 Pay as you go offer From today until 28 August, every train journey with pay as you go is just £1. Tap in, tap out, and travel by train within our pay as you go zones📲 Need more info, visit👇 tfw.wales/ways-to-travel/rai…
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A record 3 #WhiteTailedEagle chicks have fledged in the wild in England this summer including the first in Dorset for over 240 years! The chicks were reared by eagles released by @ForestryEngland & @RoyDennisWF in our project to return this lost species🦅 bit.ly/4mwTz53
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So, I've just spent a bit of time looking into the debate on IHT and farming. I... got a shock. First, a note: I have a friend who runs a family farm. In his view, the whole thing is a something and nothing. 🧵
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Really important research from @DaveGoulson. There are really effective herbal solutions for dog fleas, as there are for lice in human hair. Why poison our pets, us, our natural water systems and the environment? All these chemicals need to be challenged.
Replying to @DaveGoulson
Both imidacloprid (a neonic) and fipronil are now found in the large majority of English rivers. Our research shows that owners washing their hands after contact with pets is a significant contributor. Washing bedding or bathing dogs also contributes. sciencedirect.com/science/ar…
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Happy #WorldWetlandsDay! 💧 Covering <1% of the earth's surface, wetlands contain nearly 12% of all biodiversity - and beavers can help supercharge these habitats. A study by @StirUni found the number of species in beaver-created wetlands was 50% greater than in other wetlands!
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Great to see this around urban areas. Time for some of this in Wales! @TirNatur @NatResWales @WelshGovernment @SeneddWales
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A great graph of predicted solar PV additions Vs where we've actually got to! Everything happens in exponentials people.
Nice "new" visualization of solar growth versus predictions ;-) ht @baumanns
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Well worth a watch. This is why I am also optimistic for the future. I call it maths based optimism! There is already so much good stuff happening.
My @TEDTalks is now online. I argue that we have the opportunity to build a world where we can all live well, and tackle our environmental problems at the same time. This is possible, but not inevitable. We have to push to make that a reality. ted.com/talks/hannah_ritchie…
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Very true. Housebuilding lobby needs to be put in its place on its environmental impacts. And start building council houses using publicly owned companies so we aren't relying on big private housebuilders to build houses for us.
When it comes to screwing us over, the housebuilders have form. The 2007 Code for Sustainable Homes required ALL new homes to be zero carbon by 2016. After lobbying the Conservatives scrapped it, leaving new homeowners with huge heating bills. businessgreen.com/news/30724…
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A 🧵on why oil companies don't invest in renewables, what the UK Government is now overtly doing to assist big oil, and what it should be doing. 1/
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'Our historical ability to wipe out life does NOT render it alien to our shores.' 👏😀 A wonderful thread on a keystone species that benefits wildlife and farming. Disgrifiad hyfryd o rywogaeth sydd o fudd i fywyd gwyllt a ffermio.
1. This is a thread about the most powerful bird of all: a Guardian Giant. It’s essential to the recovery of nature – and could help farmers and landowners too. This thread explains how Eagle-owls could transform Britain: our island's most important avian keystone species.
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This whole thread is excellent and quite eye opening. Private water companies environmentally insolvent.
There has been much discussion about the likely failure of Thames Water in the last day or so. I’ve been looking at the accounts of England’s water companies for the last twenty years. My conclusion is that they are all environmentally insolvent. So, a thread…..
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Completely agree, food banks not the answer. Not food poverty - just poverty. Food cost not the cause of poverty + can't change food prices. Drivers are low wages, a crap social security system, and costs of housing, energy, comms, and public transport. theguardian.com/society/2023…
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To my Cardiff/ near Cardiff contacts. This Wednesday 14th June I and @motionmanor are hosting the next People, Planet, Pint networking event at Zero Degrees in Cardiff city centre. We will be there from 17:30 and will likely be around until at least 20:00. eventbrite.co.uk/e/cardiff-p…
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This is why I'm very optimistic for the future. I call it maths based optimism! We just need to stop finding excuses not to do things so we can enable a faster decarbonisation transition. Ask, what's the risk of not doing this? Rather than, what's the risk of doing this?
The renewables revolution is unfolding live, fast and furiously. "It's exponential, global, and this decade": look at the data and do the math THREAD
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To my Cardiff/ near Cardiff contacts - this Wednesday 3rd May I and @motionmanor are hosting the next People, Planet, Pint networking event at Zero Degrees in Cardiff city centre. We will be there from 17:30 and will likely be around until at least 20:00. eventbrite.co.uk/e/cardiff-p…
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Totally agree with all this. Here's what we could do - very gradually bring mortgage limits back to max 3x salary. It is the relaxation of mortgage limits that allowed house prices to inflate. In parallel bring in more social housing, and rent regulation. theguardian.com/commentisfre…
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This explains a lot. I'm glad it wasn't just my sense of things! metoffice.gov.uk/about-us/pr…
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