In June 2026, during a severe heatwave, climatologist Christophe Cassou, lead author of Group I of the Intergovernmental Panel on Climate Change (IPCC), called for the Libération newspaper to finally "politize heatwaves." He has since written an article for Socialter in which he criticizes the denial of human vulnerabilities, the comforting rhetoric around adaptation to +4°C warming, and what he calls the "demagoguery of impotence." His words reflect the quiet anger of the scientific community toward a political class that seems to be leading society directly into the climate crisis. This summer of 2026 has seen temperatures soar again, reaching 40.3°C in the Tarn on September 6. Students in southern France are returning to overheated classrooms, while outdoor workers face the same risks of dehydration and fatigue as in earlier months. Farmers, already struggling with prolonged heat and drought, are losing what little remains of their harvests. Firefighters continue to respond to fire alerts, and trees are withering, losing their leaves, while animals suffer under the relentless heat. The summer of 2026 illustrates the tangible effects of just +1.4°C of average global warming compared to pre-industrial times, which translates to roughly +2°C for France. These small increases in temperature have dangerously expanded the range of possible climates and intensified extreme heat. The more warming occurs, the more frequent, prolonged, and severe heatwaves become. Cassou coined the acronym FLIP during the May 2026 heatwave to describe these events, a term that also reflects the anxiety felt in the face of these climatic threats, which now pose a vital risk to all French people and the country's economy, infrastructure, and ecosystems. More than 200,000 people in France have been displaced, many suffering trauma from the events. The economic and social consequences are profound, with businesses and livelihoods at risk. Ecosystems, both terrestrial and marine, which store carbon and support life, are also under threat. In a country where security is a central political concern, global warming is creating new insecurities in health, food, and economic stability. Cassou argues that the extreme climate events of 2026, along with their consequences like wildfires and disease outbreaks, have made the unthinkable a reality. Despite technological progress, the limits of adaptation are almost insurmountable within the time we have. These limits are not just financial or technological, but also physiological, affecting vegetation, animals, and humans. The summer of 2026, like that of 2022, reminds us that we are dealing with a systemic failure, not isolated disasters. The impacts of global warming are widespread and intensifying, and we are only at the beginning. Scientists have long predicted such scenarios, and the IPCC has not exaggerated. The problem is not a lack of understanding but the lack of action on the root cause: the accumulation of carbon dioxide in the atmosphere due to the combustion of fossil fuels. The political discourse remains focused on symptoms rather than the causes, and the transition from fossil fuels must be the core of a new social project.