Los Angeles made smog and pollution into household words. No longer. Its citizens have said "enough." TreePeople, founded by Andy Lipkis, is leading the campaign to plant one million trees in the next decade. Friends of the L.A. River and the Rivers & Mountains Conservancy, determined to see the return of steelhead salmon in their lifetimes, are reclaiming the Los Angeles River. To everyone's surprise, Los Angeles is discovering mass transit. Darrell Clarke, executive director of Friends of the Expo Line, has spent nearly two decades convincing the city to build the first east-west light rail line in Los Angeles in 50 years. Adult mentors in the Girls Today Women Tomorrow work with the girls of Boyle Heights, teaching them about nutrition, exercise and their Latina culture. The community-based program also provides college scholarships in a neighborhood where the drop-out rate is close to 50 percent. Los Angeles is even planning a 26-acre downtown park, thanks to the philanthropic generosity and vision of Eli Broad. Other green projects are being promoted by the city's mayor, Antonio Villaraigosa, who understands that environmental justice, public health and quality of life are all integral as Los Angeles citizens "dream a different city."