School of Sustainability

Reading in progress
Sunday 20 September 2026

What is working, where, and who made it work. Read the whole turn of the earth in two minutes, then go as deep as you like.

One little thing

Find a spider's web on the hedge or the railings first thing, while the dew is still on it. It is the only time of year you can see the whole of it.

263 of 365
  1. Land & WaterDanube Delta, Romania, 29.58° E

    Ultima Frontiera prepares to let the Danube back in

    At the edge of the Romanian Danube Delta, near the Chilia branch before the river meets the Black Sea, water was once made to behave by pump, sluice and dyke. Ultima Frontiera became a fish farm in the 1950s, its more than 800 hectares of reedbed, lake, grassland and dune rearranged into managed ponds. The enterprise stopped around twenty years ago, and the machinery of control has been rusting while reeds, birds and animals have quietly tested the gaps.

    In 2025 Rewilding Europe, backed by its Rewilding Land Facility, took long-term management rights to the site inside the Danube Delta Biosphere Reserve. The point is not to freeze it as wilderness, nor to rebuild the farm. Alec Bălășescu’s team is working towards a semi-natural wetland: former ponds reconnected, barriers removed where they do the most harm, water levels allowed to move with season and river rather than production targets.

    The place refuses to let that work become innocent. Nearby stood Periprava, a forced-labour colony among the harshest in Romania’s communist detention system, where political prisoners built embankments, reclaimed ground and cut reeds. The camp ran from 1958 to 1963 under commander Ion Ficior; over those five years it cost the lives of more than 100 prisoners. Rewilding Romania is working with the Institute for the Investigation of Communist Crimes and the Memory of the Romanian Exile so the derelict buildings are neither erased nor prettified. Owls and bats are already using them; vegetation is taking the walls back by increments.

    A hydrological study by Dutch consultancy Bureau Stroming now gives the team a working map of how water enters, stalls and leaves. Horses and locally owned cattle already graze parts of the site, keeping open ground in use rather than abandoning it to scrub. If the reconnection holds, Dalmatian pelicans, terns, fish and the ordinary plants of wet places get room first; people get a delta that remembers what was done to it while becoming less broken.

    Practice

    If you hold wet ground, map where water wants to go before spending: walk it after rain, flag every sluice and collapsed culvert, then open the lowest barrier first and watch one winter. A hand level, notebook and spade cost little; the patient season is the budget.

    Rewilding Europe · Read the source

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Machine

Before the Danube comes back, somebody has to guess where it goes

Letting a river back into its old floodplain, as the piece above describes on the Danube, sounds like an act of removal: knock a gap in the dike, walk away, let water do the rest. In practice it begins with a model. Before anyone cuts a breach, engineers and ecologists run simulations of where the water will actually go — how fast it spreads across a reconnected polder, where sediment drops, which villages and fields sit in the new flood path. Get it wrong and a restoration project becomes an unplanned evacuation.

This is one of the places machine-assisted modelling does quiet, defensible work. Flood extent from Sentinel satellite passes can be mapped automatically rather than traced by hand, which matters on a delta the size of the Danube's, where a single high-water event covers more ground than a survey team could walk in a season. Hydrological models calibrated on those maps let planners test a dozen breach positions on a screen before committing to one with an excavator.

The honest caveat is that reconnection is exactly the case these models are worst at. They are trained on the river as it has behaved — diked, dredged, confined — and asked to predict the river as it will behave once the constraints come off. Sediment shifts the channel bed year by year; vegetation changes roughness; the model's confidence interval quietly widens the moment the project succeeds. The Danube Delta's long gauge records help, but a rewetted floodplain is a new regime wearing old data.

None of this is an argument against the models. It is an argument for treating their output the way a repairer treats a secondhand part: useful, probably right, worth checking against the thing itself. The Danube projects that have gone well tend to be the ones that breached small, watched what the water did, and adjusted — the model as a first guess, the river as the corrector. That is the right hierarchy, and it is worth keeping in whatever order you do the work.

Ultima Frontiera prepares to let the Danube back in

Slow-braised runner beans with tomato and onion

vegan

For the last heavy picking of beans, cooked past the point most recipes stop at.

  • 400g runner beans
  • one large onion
  • three cloves of garlic
  • a 400g tin of chopped tomatoes
  • two bay leaves, fresh if you have them
  • four tablespoons of olive oil
  • 300g potatoes
  • salt and black pepper

String the beans and slice them on the diagonal into pieces a finger wide; if any are old and the skins feel leathery, use them anyway, the long cooking is the point. Soften the onion in the oil in a wide pan with a lid for ten minutes, then add the garlic and bay for another minute. Tip in the beans, the tomatoes, and half a tin of water, season well, and put the lid on. Cook at the lowest simmer for forty minutes to an hour, stirring now and then, until the beans have gone from green to olive and collapse when pressed against the side of the pan - they are done when they stop looking like vegetables and start looking like sauce. Meanwhile boil the potatoes in salted water until tender. Serve the beans over the potatoes, split open so they take the juice, with the rest of the oil from the pan spooned on top.

Serves 2 · about £1.90

Tomorrow: Any beans left reheat well the next day; loosen with a splash of water and eat on toast, or stir through cooked pasta.

Archive

Nothing drops off. Today's readings move here tomorrow morning and stay, filed under the entrypoint they came in on. Below is the back-spool already gathered from the network.

Soil & Seed

Land & Water

Source register

The institutions whose public output feeds this reading. Each is watched every morning for what it publishes openly. Individuals are not listed here.

Soil & Seed

Permaculture Association · Permaculture Magazine · Regeneration International · Seed Savers Exchange · Garden Organic · Navdanya · Biodynamic Association UK · Biodynamic Demeter Alliance · Rodale Institute · Kiss the Ground · Savory Institute · Landworkers Alliance · Sustainable Food Trust · Real Farming Trust · Agroforestry Research Trust · Soil Association · A Growing Culture · Pasture for Life · Farmerama Radio

Land & Water

Ecosystem Restoration Communities · Rewilding Britain · Rewilding Europe · Trees for Life · Knepp Estate · Beaver Trust

Making & Mending

The Restart Project · Low-tech Magazine · Makery · Repair Cafe International · Precious Plastic · Library of Things · Wuyong (Ma Ke)

Shelter & Warmth

Centre for Alternative Technology · AECB · Passivhaus Trust · Community Energy England

Art & Story

Julie's Bicycle · Dark Mountain Project · Emergence Magazine · Orion Magazine · Resurgence & Ecologist

Community & Commons

Shareable · Transition Network · Global Ecovillage Network · Capital Institute

Attention

Bioneers · Gaia Education · Schumacher College · Center for Humans and Nature · Findhorn Foundation