Belgium’s Triple Environmental Crisis: PFAS, Hornets, Wind
Belgium is confronting a trio of environmental challenges on May 21, 2026, as environmental NGOs take legal action over PFAS pollution, the invasive Asian hornet population surges in Flanders, and the country’s offshore wind expansion falls behind schedule. Each issue highlights different dimensions of the environmental pressures facing the nation.
NGOs Take French State to Court Over PFAS Inaction
Three environmental associations — Générations Futures, Notre Affaire à Tous, and Bloom — along with six individuals living in PFAS-contaminated “hot spots,” have filed a legal action with the Administrative Tribunal of Paris, as reported by La Libre Belgique. The plaintiffs demand that the state be condemned to stop pollution and organize the management of environmental and health costs, seeking €10,000 in damages per individual for anxiety caused by PFAS exposure, plus €1,000 each for moral prejudice.
PFAS — per- and polyfluoroalkyl substances known as “forever chemicals” — accumulate in air, soil, water, food, and the human body, with some linked to deleterious health effects. François Veillerette, spokesperson for Générations Futures, described the situation as a “double failure: past failure through inaction and present failure through insufficient action.”
Parliamentary reports dating back to 2008 had already flagged PFAS risks, yet the first French law to protect the population from these chemicals only emerged from a bill filed in February 2024 by Green MP Nicolas Thierry. More than a year after the law was passed, a key provision — a fee on industrial polluters who discharge PFAS into water — has still not been implemented, with the government deciding to delay the implementing decrees by an additional six months in spring 2026.
A report from the Haut Commissariat au Plan published in October 2025 found that 24% of French adolescents have serum PFAS concentrations exceeding European Food Safety Authority (EFSA) recommendations, compared to 18% in Germany and just 1% in Spain.
Asian Hornet Queen Catches Triple in Flanders
Meanwhile, the number of Asian hornet queens caught in Flanders this spring has reached 56,700 — more than three times the 16,000 caught in 2025, according to VRT NWS. The 2025 figure was itself a multiple of the 4,000 caught in 2024.
While 11,000 traps were registered this year, up from 4,000 last year, researcher Jasmijn Hillaert of the Instituut voor Natuur- en Bosonderzoek (INBO) noted that the increase in catches per trap also rose between 2024 and 2025, indicating genuine population growth beyond increased monitoring. “The population has not yet reached carrying capacity in Flanders,” Hillaert said. “We therefore expect the increase to continue.”
The Asian hornet (Vespa velutina), an invasive species first detected in Belgium in 2016, threatens native bee populations. Citizens can register catches via MijnTuinlab.be, a citizen science project run by the Flemish government and KU Leuven. However, researchers caution that the scientific effectiveness of spring trapping is not yet proven, and poorly designed traps can harm biodiversity by catching native insects.
Offshore Wind Expansion Falls Behind Schedule
Belgium’s plans to expand offshore wind capacity have also encountered significant delays. The country currently has 399 offshore wind turbines installed between 2009 and 2020, providing approximately 10% of national electricity production. The previous De Croo government planned to expand capacity from 2.26 GW to 5.4–5.8 GW by 2030 through the new Princess Elisabeth Zone (PEZ).
However, the current Arizona government — a coalition of N-VA, MR, Les Engagés, and CD&V — halted the tender process to reassess criteria, as reported by RTBF. The first tender (PEZ 1, 700 MW) has been restarted with price as the primary criterion, replacing the previous requirement for citizen cooperative participation. Construction timelines have been extended from four to five years.
Gilles Vanden Burre, co-president of Ecolo, accused the government of an “ideological decision” that cost “almost two years” of delay. Agoria, the Belgian tech industry federation, warned that the delay will cost Belgium €400 million by 2030, based on an EnergyVille study. Bart Steukers, CEO of Agoria, called the Belgian offshore wind industry “Champions League,” noting 230 active companies in the value chain, 40 of which are top-tier.
Broader Implications
These three stories, while distinct, collectively underscore the environmental challenges facing Belgium. The PFAS lawsuit highlights the tension between regulatory action and industrial pollution, the Asian hornet surge illustrates the growing pressure from invasive species, and the offshore wind delay reflects the difficult balance between policy continuity and energy transition goals.
Looking ahead, the Paris Administrative Tribunal must decide whether to accept the PFAS case, potentially setting a precedent for climate litigation in Europe. The Asian hornet population is expected to continue growing, requiring sustained monitoring and potentially new control strategies. And the Belgian government faces pressure to finalize the new offshore wind tender to avoid further economic and environmental costs.