ExplainerOctober 7, 2026
Fewer landfills can still receive more waste
EREF’s reported trends point to consolidation, but counts, tonnage, time periods and diversion rates must not be mixed.
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Explainers, teardowns, and myth-busting on waste management systems and green engineering.
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ExplainerSeptember 29, 2026
Methane to succinate: why LLNL puts bacteria in a printed scaffold
A porous support tackles gas transfer, but a one-litre demonstration is not a landfill-ready chemical plant.
Myth-BustingSeptember 26, 2026
Do landfill liners last forever? Why liners eventually fail
No. EPA's own landfill design guidance says liners will eventually degrade, tear or crack. Liners delay leachate contamination, but the waste outlasts the container.
ExplainerSeptember 24, 2026
Compost biocovers: how bacteria turn escaping landfill methane into CO2
Where a landfill is too small or old for gas collection, a layer of mature compost can host methane-eating bacteria that oxidise up to 35–40% of escaping methane — for around $48,000 an acre.
TeardownSeptember 24, 2026
Republic Services' 250 electric trucks: real progress, wrong headline
Electric collection trucks work, and Republic has proved it at city scale. But they are about 1.5% of its fleet — and its landfills' methane dwarfs anything coming out of a tailpipe.
ExplainerSeptember 22, 2026
Alberta bans solar panels from landfill: how panel recycling works, and who pays
From October 1, Alberta charges $14 on every new panel and bans end-of-life panels from landfill. Here is how a panel is taken apart, and why the fee is already contested.
ExplainerSeptember 17, 2026
Quebec Made Blue-Bin Glass Good Enough to Become a Bottle Again
For decades half of Quebec's curbside glass was buried as landfill cover. A $20M optical-sorting upgrade finally gets it clean enough for the furnace.
ExplainerSeptember 16, 2026
What Drips Out of a Landfill, and New York's Plan to Treat It
Rain moves through buried waste and comes out carrying PFAS. Municipal wastewater plants were never designed to remove it. New York proposes making landfills do it on site.
Myth-BustingSeptember 11, 2026
"Compostable" Is a Facility Spec, Not a Property of the Object
Certified compostable packaging is engineered to break down in a hot industrial windrow. Put it in a garden bin, a recycling bin or a landfill and it behaves like ordinary plastic — because in those conditions, it is.
ExplainerSeptember 10, 2026
Satellites Can See Landfill Methane Now. Detection Is Not the Same as Repair.
Orbital spectrometers have found large landfill methane plumes that operators reported as far smaller. The measurement gap is now well documented; the enforcement and engineering response is not.
Myth-BustingSeptember 2, 2026
"It's just food — it rots away harmlessly in a landfill"
Food is a quarter of what goes into landfills and is linked to well over half the methane that escapes them. The reason is that a landfill is not a compost heap — it is the opposite of one.
ExplainerAugust 29, 2026
How a car engine becomes a chemical plant that makes fuel from landfill gas
Emvolon just signed a $450M offtake deal with Freepoint. The mechanism underneath it is unexpectedly simple: run a mass-produced automotive engine deliberately fuel-rich and it stops being a combustor and starts being a reformer.
ExplainerAugust 29, 2026
The molecular clamp that grabs gold when you flip a switch
A University of Illinois team redesigned the extraction molecule itself so the organic liquid conducts its own current. It pulled 89% of the gold out of real e-waste leachate — with one to two orders of magnitude fewer reagents.
ExplainerAugust 26, 2026
An LLM on top of a decade of landfill wellhead data
Loci Controls put a language model over the largest continuous dataset of landfill gas wellhead behaviour. The useful part is not the model — it is that the data density regulators are about to require makes interpretation the bottleneck.
ExplainerAugust 26, 2026
When a landfill "catches fire" without a flame
An Elevated Temperature Landfill is not a fire. It is a landfill where heat outruns the gas system, the methane-making microbes die, and chemistry takes over — without needing oxygen, which is exactly why it is so hard to stop.
ExplainerAugust 25, 2026
AI-designed zinc sponges for methane — and the gap before a landfill
A Chicago-led team closed the loop from data mining to synthesised, tested metal-organic frameworks for methane capture. Two new materials work at ambient conditions in a lab. Landfill gas is wet, dirty and nothing like a lab.
TeardownAugust 24, 2026
"They charged for recycling, then dumped it with the trash"
Two doorbell videos show recycling carts going into a garbage truck. That is real evidence of a service failure — and not evidence that recycling is fake. The gap between those two statements is where the actual records live.
Myth-BustingAugust 21, 2026
"Biodegradable" does not mean it disappears in a landfill
The word sounds like a disposal instruction. It is not. Whether anything degrades depends on the bin it lands in — and the US regulator's benchmark for an unqualified claim is a full year, in the route the product actually takes.
Myth-BustingAugust 10, 2026
No, burning trash for electricity does not make recycling pointless
Energy recovery has a legitimate place in a waste system. It sits below prevention, reuse, recycling and composting - and roughly a tenth of what goes in still comes out as ash bound for landfill.
Myth-BustingAugust 6, 2026
"A landfill is just a hole in the ground"
A regulated municipal solid-waste landfill is an engineered containment system with liners, leachate capture, gas wells and decades of post-closure obligation. That is also not the same as saying it is safe forever.
ExplainerAugust 6, 2026
Why landfill methane spikes when the weather turns
A two-and-a-half-year monitoring run at a New Jersey landfill estimated roughly five times the methane previously reported. The mechanism is seasonal, and it is not exotic.
ExplainerAugust 5, 2026
Can a landfill machine run itself?
WM has moved a bulldozer operator out of the cab and is preparing to test an autonomous compactor. Here is what each step in that ladder actually changes on the working face.