Many environmentalists are lumped with far-left groups
There's a growing part of the population who feelsfeel that climate change and our dependency toon fossil fuels are huge problems, that should have been tackled decades ago, and only appear as an afterthought (if at all) on a long list of vain promises by almost every candidate.
Somehow, the green party (EELV) failed, once again, to propose a credible program or candidate, and got fewerless than 5% during the first round.
Many environmentally-inclined people turned to Mélenchon (far-left candidate), because his promises were the least far away from what should be done against climate change, and he had the potential to pass the first round of the election.
Those electors had nobody to vote for during the second round, after Macron and Le Pen won.
Macron proved that he didn't care much about the environment during his first mandate,mandate; he has now been elected for another 5 years,years; he wastes billions foron fuel rebates,; and the IPCC warns that global emissions should peak in 3 years to stay below 1.5°C.