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Local sustainability initiatives
Please see our local or city pages via the California category, where of course you can share any more information you may have about local sustainability initiatives.
Initiatives by topic
California Bicycle Coalition - Davis Bicycles!, 501(c)(3) nonprofit citizen group dedicated to promoting bicycling in Davis, California - Wikipedia: Bike paths in California (category), Bike paths in Orange County, California (category)
Altadena Community Garden - Bay Area Seed Interchange Library (BASIL) - Benicia Community Gardens - Food Commons Fresno - Harvest Club of Orange County - Homeless Garden Project, Santa Cruz - OC Food Access Coalition
Reduce, reuse, repair and recycle
Wikipedia: City of Oakland's Zero Waste Program: The City adopted a Zero Waste Strategic Plan in 2006, detailing a road map for the City to follow toward the implementation of a Zero Waste System by 2020. Oakland residents have played an important role in moving the City toward Zero Waste. Using their buying-power, consumers can tell industries that products must be non-toxic, reusable, recyclable or compostable or they will stay on the shelf.
Sustainable transport activism
Towards sustainable economies
Trees, woodland and forest
News and comment
see separate article: California news
Citizens data initiative
The Wellbeing Project, information from the City of Santa Monica's Office of Wellbeing.
Embassy Network Coliving, Silicon Valley
In 2006, Jessy Kate Schingler and four young engineers landed jobs at NASA in Silicon Valley. Instead of opting for cheaper housing with a long commute in one of the most expensive housing markets in the U.S., they rented a large house nearby and started the first coliving community, Rainbow Mansion. They discovered there was a glut of mansions in the area. They saw a way to create a better quality of life at a lower cost by sharing a mansion, but what was most important to them was growing as people. So, they created an environment to accelerate their personal and professional development through collaboration. In addition to sharing rent, utilities, cars, and food, they began supporting each others' professional projects including startups. They also sought out other people who were interested in changing the world for the better. They hosted workshops and events to learn and network beyond the four walls of their home. They often kept one or two rooms open so young innovators from other countries could visit.
Following Rainbow Mansion's example, many early coliving communities became hubs of learning, innovation, and social activity. Thus the pattern for coliving was set. Now there are hundreds of coliving communities worldwide.
Jessy took this one step further by creating Embassy, a network of coliving houses that give tenants access to many communities. She describes this lifestyle as, "one rent, many locations." Others have followed her lead, and the coliving movement grows as young workers have a great need for affordable housing, meaningful friendships, and professional development. My friend Chelsea Rustrum says of the coliving experience:
“You develop deeper, more real relationships and have the potential to actually work together, actually help each other. Not just in professional ways but in personal ways also." 
Local communities in California