Olivier Faure, the first secretary of the Socialist Party and a candidate in the left-wing primary for the 2027 presidential election, unveiled his ecological policy plan on August 29 in Blois. This announcement came after a summer marked by extreme heat, widespread forest fires, and a severe drought across France, highlighting the urgency of climate action. The plan, called "ecological socialism," positions climate change as a central issue in the race for the Elysée (the French presidency). Similar proposals have been put forward by other left-wing parties such as France Insoumise and the Ecologists, showing a broader consensus on the need for environmental reform. The plan, which has been in development for over a year, was approved by 83% of Socialist Party members in July 2026. It emphasizes the need to align production and consumption with the planet's ecological limits and addresses social inequalities exacerbated by climate change. The proposal is based on the concept of "ecological bifurcation," which seeks to adapt resources, housing, transportation, and the economy to the climate emergency. A key element of the plan is the "climate security fund," which would provide compensation to those affected by climate change, funded by taxes and a "carbon tax" targeting the largest polluters. A major part of the plan focuses on transportation. It includes a "new social contract for transport," offering a "social leasing" model that would allow access to electric vehicles for 100 euros per month, primarily benefiting modest and middle-class households, as well as those in rural and suburban areas. The plan also calls for the nationalization of highways, with profits reinvested in improving train services. It proposes aligning jet fuel taxation with that of oil and aims to eliminate PFAS (per- and polyfluoroalkyl substances), harmful chemicals used in various industrial and consumer products, by 2030. Additionally, the plan seeks to reform the tax system to eliminate exemptions that benefit industries not aligned with ecological goals. Climate change has become a central topic for the left in the lead-up to the 2027 presidential election. France Insoumise and the Ecologists have long focused on climate issues, with Jean-Luc Mélenchon, leader of France Insoumise, pledging to implement his "ecological state." Marine Tondelier, head of the Ecologists, has emphasized the importance of addressing climate issues but her party remains divided on whether to merge with France Insoumise before the election. The Socialists, with their "ecological socialism" plan, aim to influence the left's ideological debate as they face competition from other left-wing parties that have already shaped public discourse on climate issues during the summer.