[dragonwriter]

> I've wondered why environmental advocacy groups are not more vocal in support of curtailing immigration into the US. If the American lifestyle is more resource intense, wouldn't that be a natural stance to take?

No, I mean, not unless you are talking about the kind of environmental groups that exist only in the propaganda of anti-environmental groups, that also campaign against economic development per se, since immigration to the US is isomorphic to economic development in this regard.

[kbutler]

...or exist in history, but their position changed because it was politically unpopular.

Sierra Club 1989: "Immigration to the United States should be no greater than that which will permit achievement of population stabilization in the United States...since it is the fact of increasing numbers that affects population growth and ultimately, the quality of the environment."

Through the 90s and 2000s, there have been heated (and close) votes on immigration policy.

https://cis.org/Sussis/Brief-Chronology-Sierra-Clubs-Retreat...