The landmark California environmental legislation that lawmakers have voted to walk back will allow for crucial infrastructure to take place.

Newsom described the bills as the “most consequential housing reform that we’ve seen in modern history in the state of California.” But the legislation has angered some environmental groups and labor unions. Here are the details: Q: What are the politics behind all this?

California is rolling back environmental regulations for some construction projects after Gov. Gavin Newsom signed a law this week ending strict review for many new developments. Why it matters: The move could cut down planning and zoning timelines in cities that desperately need more housing.