On October 11, 2026, the Official Journal published new environment-related terms, which were adopted by the Ministry of National Education on November 5. These terms clarify concepts of climate, biodiversity, and oceanography. They aim to improve understanding of ecological issues and to harmonize the vocabulary of teachers, scientists, and professionals.
Climatonégateur and Climate Denial: Words to Clarify the Environment
Until now, debates about climate change often used similar words without always clarifying their scope. Now, the official vocabulary distinguishes climate skepticism, which doubts the human influence on warming, or even its reality, from climate denial, which denies that influence or even the existence of the phenomenon. Furthermore, the term “climatonégateur” designates a person adopting this second position. The Commission for the Enrichment of the French Language defines it as a “Person who denies the effect of human activities on climate change,” according to the Official Journal of October 11, 2026. Reaffirmed by the Ministry of National Education on November 5, this definition provides linguistic clarification rather than new scientific demonstration. The text recognizes “climatonégation” as a synonym of climate denial, thus enriching the vocabulary used in debates.
This precision comes in a field where the choice of words directly shapes the understanding of the issues at stake. Thus, climate skepticism and climate denial denote different attitudes toward the same scientific questions. Moreover, the official list provides English equivalents, facilitating reading and translation of international documents. This harmonization also helps teachers explain why certain terms are not interchangeable. In its November 6, 2026 article, the Café pédagogique highlights the value of this lexicon for raising students’ awareness of ecological issues and scientific precision. These words thus become useful analytical tools for teachers, journalists, and public officials to distinguish scientific facts from opinions. However, their entry in the Official Journal does not mean they were invented, but that they now have a reference definition. This publication is therefore aimed at clarifying usage rather than creating new scientific categories.
Oceans and Biodiversity: Words to Understand the Environment
The official vocabulary is not limited to climate debates and also gives prominence to oceanic phenomena. Among the terms chosen is the “tapis roulant atlantique,” associated with the Atlantic Meridional Overturning Circulation (AMOC) in international scientific literature. This system groups ocean currents that transport water masses in the Atlantic. According to the Official Journal of October 11, 2026, warm surface waters circulate northward, where cooling and increased salinity raise their density. A portion then sinks to depth before returning southward, contributing to climate regulation. In addition, this circulation transports organic matter and nutrients essential to marine species. The official text cites, notably, the Gulf Stream and the Labrador Current among the components of this system. These new words thus allow describing precisely a complex oceanographic mechanism, while harmonizing French vocabulary with international scientific expressions.
Other definitions concern coastal spaces and biodiversity. The “cordon dunaire” designates a dune belt along the coast, naturally protecting against erosion and saltwater intrusion. The “estran” corresponds to the part of the shoreline alternately covered and uncovered by the tides, harboring organisms adapted to temperature, humidity, and salinity fluctuations. Furthermore, the “storm surge” designates a temporary rise in sea level caused by extreme weather conditions, potentially leading to flooding on coastlines. This concept helps distinguish the effects of storms from those of tides. The list also introduces the “regeneration enclosure,” a degraded or threatened natural area fenced off to promote vegetation recovery and restore ecological balance. According to the Official Bulletin of November 5, 2026, these arrangements can concern forests, mountains, coastlines, parks, and gardens. These new terms thus enable precise descriptions of various natural phenomena and environmental protection measures.
Water Treatment and the Ecological Transition: Technical Terms for the Environment
Sanitation, or wastewater treatment, is another important aspect of this update. Several terms describe the biological techniques used to treat wastewater. The “activated sludge treatment” relies on bacteria suspended in a stirred and aerated basin, which decompose organic matter and certain nitrogen- or phosphorus-containing compounds. In parallel, the “biofilm fixed-bed treatment” uses a fixed support covered with a biofilm, through which the wastewater flows and is naturally aerated. A third technique, the “fluidized-bed treatment,” mobilizes mobile porous supports submerged, made notably of clay beads, polystyrene, or composite materials, on which bacteria grow. According to the Official Journal of October 11, 2026, this process offers the advantage of occupying less space than other biological treatments. The vocabulary also includes the “fluidized-bed bioreactor” (BRLF). These new terms thus allow distinguishing the various purification techniques according to how they operate.
Finally, the publication provides an official definition of the “ecological transition,” a term widely used in public policy. It designates a gradual transformation of production and consumption patterns to preserve natural environments and respond to climate change. This approach combines mitigation of warming and adaptation to its effects. The Official Bulletin of November 5, 2026 specifies that it rests notably on energy transition, waste reduction, and respect for ecosystems. The words used in administrative documents thus benefit from a common framework, while the French-English equivalences facilitate scientific and technical exchanges.
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