It's Not Easy Being Green

Cities, in particular LA, have long recognized the urgency of the problems of smog and rising temperatures, and have tried to address them through emisson standards and industrial regulations. But they've ignored one of the biggest potential solutions. According to the Lawrence Berkeley Laboratory, an additional 10 million trees in L.A could cool city temperatures by five degrees. The continued health of our urban forest depends largely on the activists who have assigned themselves the Sisyphean task of compensating for our abject neglect. Thus far they have found it a tough row to hoe, clashing with the city, the general public and each other. By Sara Catania.

Thanks to Chris Steins