As part of a recent review of environmental issues related to green algae in Brittany, Amélie de Montchalin, the First President of the Court of Auditors, met with local officials and community groups in Lamballe-Armor, a town in the Côtes-d'Armor department, on Friday, September 4, 2026. The meeting aimed to assess progress in addressing the problem of green algae, which has been affecting coastal areas in the region for several years. Green algae, or Ulva species, often bloom in coastal waters due to excess nutrients from agricultural runoff and other human activities, leading to environmental and economic concerns for local communities. During the meeting, de Montchalin emphasized the importance of effective measures to reduce the impact of these algae blooms. These blooms can lead to unsightly green scum on beaches, which harms tourism and local fisheries. In recent years, Brittany has seen increasing efforts to manage this issue, but the audit suggests that some initiatives have not yet achieved the desired results. Several local stakeholders, including government officials and environmental organizations, were criticized during the audit for not showing sufficient progress or engagement in the fight against green algae. The Court of Auditors highlighted a lack of coordination and consistent action among different actors, which has hindered the effectiveness of current strategies. This has raised concerns about the ability of local authorities to meet environmental targets set by national and regional authorities. The audit underscores the need for stronger collaboration between public institutions, private entities, and local communities to develop sustainable solutions. While Brittany has made some strides in addressing the issue, the findings suggest that more focused efforts and accountability are required to ensure that environmental goals are met. The meeting in Lamballe-Armor is expected to lead to further discussions and potential reforms in how the region tackles the ongoing challenge of green algae.