Season 7, Episode 24

Young girls sold on the streets of L.A. are victims of human trafficking.

Weekly hug sessions give people the benefits of human touch.

Classic automobiles get new life without losing their weathered charm.

Historical footage of a dangerous Hollywood intersection before traffic signals.

Season 7, Episode 17

Food scraps are turned into fuel at a state-of-the-art Orange County recycling center.

A close-up view of the colorful light show from the top of downtown's U.S. Bank Tower.

A graduate student at UCLA has a secret. He lives in his car.

The amazing dexterity of those who have mastered the art of "cardistry."
 

Joshua Tree National Park - Are we loving our parks to death? The popularity of Joshua Tree area is bringing stress and damage to this beautiful park. Frozen Garden - Can endangered plants be saved by freezing them? Can they survive super cold temperatures? Scientists at Huntington Gardens are hopeful. Eco-Village Living - Can you live in harmony with nature in the middle of the city? A communal village in the middle of Koreatown has stook the test of time.

A look into cutting-edge environmental practices at a farm where soil is king; a visit to an incubator for green business entrepreneurs; and a hopeful discussion with a climate scientist.