Europe's nitrate crisis deepens as farm lobby blocks water protection

The herring that once thrived in the Baltic Sea's brackish waters are vanishing. Numbers have fallen 80 percent since the 1970s, stripping the ecosystem of what Johanna Fox, director of the WWF Baltic Sea Programme, calls its engine. Cod collapsed first, their fishery now virtually banned under EU law. What remains is a dead zone 1.5 times the size of Denmark, the largest in the world, where oxygen has been consumed by algae blooms fed by a relentless tide of nitrogen and phosphorus from surrounding farmland.

Three decades of regulation, almost no improvement

The European Union has been trying to control nitrate pollution since the 1991 Nitrates Directive. That law aimed to restrict manure and chemical fertiliser on high-risk land. Yet according to the European Environment Agency's latest State of Water report, nitrate concentrations in groundwater have not budged since the turn of the century. Surface water showed early gains, but progress stalled roughly 15 years ago. A third of Europe's freshwater supply still exceeds acceptable nitrate levels.

The problem is not confined to the Baltic. Pig farms in Spain contaminate groundwater. Fertiliser runoff pollutes Italian rivers. Dutch and Belgian dairy operations drive toxic algal blooms along the North Sea coast. The common thread is agriculture, specifically the combination of synthetic nitrogen fertiliser, made possible by Fritz Haber's early 20th-century breakthrough, and the manure from increasingly intensive livestock systems. As Ingo Fetzer of the Stockholm Resilience Centre puts it, extracting inert nitrogen from the atmosphere and injecting it into land and water has destabilised ecosystems just as surely as burning fossil fuels destabilised the climate.

Why the Nitrates Directive is not working

Experts offer three overlapping explanations. First, the directive grants derogations, exemptions allowing higher nitrate application, to countries that request them. Ireland, the Netherlands and Denmark have long used these. Second, enforcement is patchy. Caroline Whalley of the EEA contrasts agricultural pollution with a factory pipe: diffuse runoff from thousands of fields cannot be traced to a single polluter. Third, the rules themselves may be too weak. Sara Johansson of the European Environmental Bureau argues that poor implementation and the willingness to grant derogations have undermined the directive from the start.

Denmark has said it will stop seeking derogations. Ireland and the Netherlands, however, are, in Johansson's words, "fiercely holding onto their derogations and renewing them" while seeking ways to "get round the rules so they can continue keeping unsustainably high livestock numbers." The Netherlands announced last month it would push back its nitrogen targets by five years, in defiance of EU law.

The derogation system under pressure

Every four years, countries requesting derogations must justify them to the Commission's Nitrate Committee. Ireland has historically secured permission to spread 250 kg of nitrate per hectare, well above the standard 170 kg limit. In the last cycle, during the Green Deal's peak influence, the Commission reduced this to 220 kg. Ireland's next hearing arrives in the coming months, and the political wind has shifted. Edward Burgess of Teagasc, Ireland's agriculture agency, notes that the new Commission sworn in last December has signalled farmers' needs come before environmental targets.

Burgess argues the derogation system, for all its flaws, drives better practices. Farmers operating under derogation face closer monitoring, which improves their management. Remove the derogation, he warns, and engagement drops, potentially worsening outcomes. "It's certainly not as simple as saying if we get rid of the derogation, everything will be hunky dory," he says. "My expectation is if we get rid of the derogation, there will be very little change, and if there is change, it will be worse." The real issue, he adds, is that nitrate leaching depends on soil, geology and geography, factors a blanket limit cannot capture. Tailored regulation would require resources no member state has committed.

Farm lobby ascendant in Brussels

The political context has hardened. Since the Green Deal's early momentum, war on Europe's borders and rising trade tensions have elevated food security arguments above environmental ones. The conservative European People's Party, the Parliament's largest group, has moved closer to the farm lobby. Copa Cogeca, the EU-level farming organisation, has staged protests across the continent against green rules and seen its influence grow. Multiple MEPs told POLITICO that centre- and right-wing lawmakers blocked ambitious environmental language in the parliamentary water proposal, scrubbing references to the Green Deal and rejecting Green attempts to strengthen nitrate enforcement.

The Commission is now considering a simplification bill that many fear will weaken nitrate rules further. An EU official insisted the Nitrates Directive "remains very important and relevant" and that the review examines "simplification and burden reduction potential." Michal Wiezik, the Renew Europe MEP who led the agriculture committee's work on water resilience, is sceptical. "They call it simplification, I call it deregulation," he says. He expects the Parliament's majorities to downgrade the Water Resilience Strategy to something that "does not ask too much effort from the farmers." That, he adds, is the perennial problem: "whenever there is legislation relating to agriculture, there is always this sentiment to defend the farmers." Copa Cogeca did not respond to interview requests.

The Common Agricultural Policy contradiction

Looming over every water discussion is the Common Agricultural Policy, which consumes nearly a third of the EU budget. The European Court of Auditors has concluded that the CAP often works against environmental objectives. Fox argues the CAP "promotes large, more intensive farming," driving the very fertiliser use the Nitrates Directive tries to restrain. The directive is, in her view, an inadequate check on the CAP colossus. Real reform would mean confronting the subsidy structure that rewards intensity, a fight the Commission has shown little appetite for after recent farmer protests.

The draft Water Resilience Strategy, a 34-page document obtained by POLITICO, does not mention nitrate pollution once. Nutrient pollution appears three times. The Commission's environment department is gathering stakeholder feedback on the Nitrates Directive's effectiveness and expects to report by year-end, but remains noncommittal on reform. Meanwhile, the Baltic's dead zone persists, its anaerobic sediments now releasing methane, a potent greenhouse gas, turning a regional ecological crisis into a climate feedback loop. Recent studies suggest the Baltic may become a net contributor to global warming.