For
Fewer people could mean less pressure on the planet.
Against
Family size is a personal choice and part of cultural values.
Anonymous excerpts, translated where noted.
“Resources are limited and running out so doesn't make sense for their kids to be in a race once again.”
“With limited resources, I wanted to give my child a better fighting chance at life by just having them.”
“Climate change doesn't really impact on the ethics of having children; having children isn't unethical.”
“That is a personal choice that you need to decide.”