Portland has been putting in effort making things more walkable, bikeable and putting in medium density developments that are in walkeable areas. There's plenty to improve but clear progress towards that direction.

In another comment you claim that environmentalists are usually pro sprawl. That...very much does not match my experience. How did you form this opinion?

Most serious environmentalists I know support urban densification, not sprawl because densification increases efficiency, decreases polution and decreases habitat destruction.