California Native Plant Society
The California Native Plant Society (CNPS) is
a non-profit organization dedicated to the understanding and appreciation of
California's native plants and how to conserve them and their natural habitats
through education, science, advocacy, horticulture and land stewardship.
The Expo Line
group of citizens joined together to support an alternative to L.A.'s
world-record traffic: a fast, comfortable, safe, quiet, exhaust-free,
high-capacity light rail transit line
The Sierra Club
There are several local branches in Southern California
TreePeople is an environmental nonprofit that unites the power of trees,
people and technology to grow a sustainable future for Los Angeles.
Simply put, their work is about helping nature heal our cities.