Los Angeles

Nearly 10,000 people in Los Angeles live in vehicles. The City Council recently extended a ban on sleeping overnight in cars, vans or RVs in residential areas and near parks or schools.

New cases of asthma dropped dramatically in Los Angeles communities where air quality improved the most over 20 years. The results illustrate health benefits from pollution control.

Los Angeles has a large and growing homeless population. A program called rapid rehousing gets people into homes quickly. But it isn't a long-term fix to the region's larger housing crisis.

On Jan. 17, 1994, a 6.7 magnitude quake rocked the suburbs north of Los Angeles, leaving 57 dead and causing more than $43 billion in damage. Officials worry LA isn't ready for the next big quake.

Immigrants who manage to make it to cities in California face a high cost of living, but they also have access to legal aid which makes a huge difference in asylum cases.