Is California running out of land?
At first glance, this may seem to be a preposterous question. After all, California has something like 150,000 square miles of land – and the vast majority of it is not urbanized. The federal government owns half of it for parks, national forests, and the like, and most of the rest of it is used to grow food. Even with the rapid urban growth we've experienced during the past half-century, how can we be running out of land?