No, Serena clean air isn't the reason for your increased birth rates - the ritualised raping is

It makes me so mad that Serena can keep making the claim that Gilead cleaned the air and the toxins and now they're having so many babies, and not a single person have yet to point out that the whole Handmaid system is the true reason.

No other country are forcing fertile women to try and get pregnant every month, so of course they're not having the same "success".

She makes this claim several times when speaking with foreign diplomates and while in Canada, including when she's showing diplomats New Bethlehem (season 6) where she even justefies the existense of Gilead because of increased birth rates and everyone is just smiling and nodding.

I just want a single person to go: "You're right the birth rates are up in Gilead and still low everywhere else, but perhaps that has to do with the fact that birth control is banned, young girls are being forced to marry, married couples are obligated by law to try and have children, and oh your army of enslaved women that people like you and your late husband rape every month." But no, nothing.