The packaging of the French definitive stamps booklets has changed : yesterday, 15th of January, the French post has issued the “éco-carnet” (carnet = booklet) with "éco" standing for ecological !
On the cover of the booklet it is written “Pour la planète” which means “For the Earth”. The paper of the cover is made from wood coming from specific forests that are cultivated in an ecological way. And the gum of the stamps are without solvent.
Another change is that the booklet contains 12 stamps instead of 10 before.