I was forgetting that, I'm sorry for my oversight. You bring up an excellent point!
Considering the original owners of the land is absolutely fundamental, and their genuine input into the environmental assessment process is crucial to creating a sustainable use of the environment.
The original owners don't exist anymore. We probably don't even know who they were. Control of land in America was never an unbroken line of custody by a single tribe. You could consider the most recent non-white owners, but that's a pointless distinction.
Aside from patrick451's comment, what makes you think the original owners can make effective decisions for environmental sustainability today? Their descendants probably can't.
Considering the original owners of the land is absolutely fundamental, and their genuine input into the environmental assessment process is crucial to creating a sustainable use of the environment.