Last September, as floods tore through Central Europe killing 335 people, something else was washing into rivers and groundwater: decades of buried waste from landfills we’ve lost track of.
Across Europe, 500,000landfills sit buried—one for every 1,000 Europeans. About 90% were built before pollution control regulations existed. No linings, no protections, no monitoring.
Here’s the terrifying part: we don’t know where most of them are.
The Scale of What We’re Facing
A groundbreaking investigation managed to map over 61,000 landfill sites across Europe—still only a fraction of the total.
28% sit in flood-prone areas. That’s 140,000 landfills waiting for the next flood. Another 30,000 sit in protected conservation areas. Nearly 300,000 where groundwater is already polluted.
Europe experienced its worst flooding since 2013last year. 335 people died. Damage hit €18 billion. Climate change is intensifying the water cycle—these extreme events will keep happening.
And these old landfills? They’re sitting ducks.
What’s Actually Leaking Out
PFAS levels in some landfill leachate exceed safe drinking water standards by 260 times.
At one site in Greece, PFAS levels reached 76 times drinking water standards. In Italy’s Veneto region, over 350,000 residents were exposed through tap water.
Ammonia, mercury, arsenic, and lead move through groundwater, surface water, and food chains.
Almost 10,000 landfills sit in drinking water zones across France, the UK, Spain, the Netherlands, Germany, and Italy. In England, 4,000 historic landfills sit within drinking water catchments with no safeguards.
The Data Black Hole
The 1999 EU Landfills Directive required closures for old sites and renovations for active ones. But it didn’t require EU states to map all sites or make closed sites safe.
The EU Commission has opened 42 infringement proceedings against member states for breaches since 1999. Nearly half remain open.
MEP Jutta Paulus: “The lack of consistent, centralized data makes it nearly impossible to get a full picture.”
Without records, we can’t assess risks, make decisions about property development, or monitor public health. Try searching for landfill locations in your area—you’ll likely find the data is fragmented, outdated, or simply unavailable.
Who Bears the Burden
4 out of 5 UK residents live within two kilometers of known landfill sites—most commonly in the poorest areas.
Professor Kate Spencer of Queen Mary University warned: “Essentially, we are all living on a garbage dump.”
We inherit cleanup responsibilities and health risks from past waste disposal decisions.
Illegal waste dumping has become one of the fastest-growing areas of organized crime in Europe. Europol reports that illicit waste generates $10-12 billion annually. The investigation identified over 2,000 illegal dumps.
Why Zero Waste Matters More Than Ever
This crisis didn’t have to happen. Every item buried in these landfills represents a failure to prevent waste at its source—the exact problem zero waste principles address.
These hazardous legacy sites block the transition to a circular economy. In England and Wales, landfill capacity could run out by 2050. We’re literally running out of places to hide our waste problem.
The solution isn’t better landfills—it’s less waste. Every piece of packaging you refuse, every product you repair instead of replace, every choice to buy unpackaged goods prevents future contamination. Not just for you, but for communities 50 years from now who’ll inherit whatever we bury today.
Climate change turns stable sites into active threats. We can’t protect ourselves from what we can’t see.
Right now, we’re not seeing most of it.
What You Can Do
Climate change is turning stable sites into active threats. We can’t fix 500,000 landfills overnight. But we can stop adding to the problem.
Find out what’s buried near you: Request landfill location data from your local council or environmental agency. In the UK, check the Environment Agency’s historic landfill map. Make noise if the data doesn’t exist—demand transparency.
Pressure for better tracking: Contact your MEP or national representative. Ask why your country doesn’t have comprehensive landfill mapping. Support legislation requiring centralized waste site databases.
Reduce what you send to landfill: Even in 2025, much of our waste still gets buried. Compost organic waste. Choose products with minimal packaging. Repair instead of replace. Support businesses committed to circular economy principles.
We can’t see most of Europe’s landfills. But we can see the waste we produce today—and we can choose differently.
