The report by economists Jean Pisani-Ferry and Selma Mahfouz puts on the table the subjects that annoy. The proposal has revived the debate, muted for a few weeks, on the taxation of the rich.

By universal definition, however, the climate question deserves more height than the swamps of the class struggle. Unless a technology suddenly emerges, unless a new way is found to reduce carbon emissions, the world will not get rid of its reliance on fossil fuels in the near future.