The Sierra Club San Francisco Bay Chapter offers hikes and outdoor recreation for people of all ages.  For a more complete listing of all Chapter outings and events see our Calendar. There are many more events on the calendar than it is possible to list on Meetup! Outings are conducted by the San Francisco Bay Chapter's Activity Sections and Regional Groups.  Activity Sections are organized around either an activity, such as hiking or backpacking, or a social theme, such as Sierra Singles.  No m …

Bioregionalism is a concept that goes beyond national boundaries, but rather is a political, cultural, and ecological system or set of views based on naturally defined areas called bioregions, similar to ecoregions. Bioregions are defined through physical and environmental features, including watershed boundaries and soil and terrain characteristics. Bioregionalism stresses that the determination of a bioregion is also a cultural phenomenon, and emphasizes local populations, knowledge, and solut …

Is Solar For You? Learn about "No Cost" and $0 Down Payment Solar Energy Programs as well as all the Federal, State and Local Incentives. NO SALES PITCHES! Let us use our group purchasing clout to create a community of empowered citizens that can exploit the latest solar technologies to power our homes and businesses and not just save money and energy but also make our own profits and implement programs such as free neighborhood electric cars! Who Should Join: HOMEOWNERS interested or cons …

The Sustainability Professionals iNetwork is a group of professionals dedicated to seeing Sustainability measures integrated in all phases of life. Our events will include product demo's, speakers, tours and open brown bag discussions. Open discussions and connections to other events related to building awareness about renewable energy, emissions reduction, urban farming, recycling, bio-fuels, solar and wind power, energy storage, home efficiency, land reclamation, water management and sustainab …

Are you curious about and interested in environmentalism on the planetary scale? We want to understand the Earth's ecological systems -- from a non-technical perspective -- and the crises they are now undergoing.  We include climate change, species extinction, resource depletion, economic collapse, the collapse of civilizations, and the end of industrial society in our discussions.  We want to learn how we can live with global crises and support one another through the worst of times ahead since …

The time is now to end public water fluoridation! For 60 years, we have been misinformed about the dangers of public water fluoridation. Together we can quickly end this harmful practice by garnering broad public support and taking strategic, organized action. Anyone interested in learning about the known ill-effects of fluoride and/or participating in a cause of action to end mandatory fluoridation of our water supply should join us. We welcome individuals with any level of interest in this iss …

This group assists Pt Reyes National Seashore staff in removing invasive exotic plant species. Park Service staff leads groups one Thursday each month and one Sunday each month, and additional days can be scheduled. Invasive exotic plant species displace native plant species and can change entire ecosystems. Examples include Scotch Broom and Cape Ivy.

The Peninsula Regional Group (PRG) is one of 3 geographically-based sub-groups of the SIERRA CLUB's Loma Prieta Chapter. Our Chapter includes most residents who live in the Silicon Valley as it covers the area south of San Francisco to south of San Jose. When you join, you will most likely be assigned to one of 3 regional groups. Our group sponsors educational events such as screenings of award-winning documentaries, talks by experts, outings, and fun socials. Most important of all, we do adv …

A group of people willing to get educated and then educate others about the exciting new situation for green energy. The public needs to know that green energy pays right now and this group can help tell them! The group will meet to learn about climate issues and the latest in green technology, then educate others through public talks, information booths, leaflets, letter writing campaigns, social media, and other useful means to spread the word about using green energy and climate issues. For e …

Marin has a lot of shorelines and a lot of litter hot spots. Caltrans and DPW can't stay on top of cleaning up their domains and need a little help. Some areas require hardhats, vests and gloves which will be provided. If you dislike litter as much as I do, join up and help make a difference.

"Find your place on the planet. Dig in, and take responsibility from there" - Gary Snyder Don't let the weeds take over our mountain! Not only are they ugly and prickly, but they're also changing our mountain: more weeds = less wildflower + more fires. The vast majority of the mountain is in good shape but the nasties are starting to take hold and move around. Let's stop them before they really get going. Say it with me, pulling broom is fun oh so fun oh so fun, I wanna do this all day long... M …

Tiger conservation has gone high-tech. Using remote camera traps, software programs that identify individual tigers captured in photographs, and other cutting-edge tools, Wildlife Conservation Society researchers are making major strides in protecting these endangered great cats. To help us safeguard their most critical habitats, we’ve joined forces with tech pros who share our commitment, and need your support. Our mission is urgent: Fewer than 3,200 wild tigers exist in the world today. Of thi …

We the people of the Green Tea Party believe in a world free from pollution. We want people to respect the environment in which we all live. Our goal is to do the best we can to live sustainably. We recognize that preserving the ecosystem is just as important as preserving the economy. In the long run we cannot have a healthy economy without having a healthy ecosystem, and vice versa. We also stand for the freedom of individuals to make choices without governmental or societal interference. This …

We're lively, sweaty folks from throughout the East Bay and beyond who get together pretty much every week to remove invasive weeds and replant native species in Redwood Regional Park, the Sausal Creek Watershed, Sibley and Huckleberry Regional Parks, and adjoining open space and wild lands throughout the Greater East Bay Hills Ecosystem. We help beautiful native plants and wildlife return to places from which they had been absent, get lots of fresh air and exercise in the process, and have grea …

#Cleanweb is about applying tech solutions to resource problems-- in energy, water, waste, transit, food, air, and other areas-- by taking advantage of the powerful trends in cheap computing power, mobility, data availability, and social graphs. Learn more at Cleanweb.co Anyone active in technology, design, entrepreneurship, and/or resource issues should join! We are organizing a project-based Cleanweb meetup and events in Palo Alto, Menlo Park, and Stanford, connecting to other Cleanweb commu …

We are focusing on how small changes can have a big effect, how the we can get together with other residents, neighborhoods, and communities of San Jose and gracefully adapt to the challenges of our changing world. We would love to meet with others, work together creatively and celebrate the transition toward a sustainable future Everyone is welcome!

Meet other local dumpster divers to discuss techniques for hunting and retrieving garbage gems and re-purposing them back into useful items. One block's trash is another man's treasure. Outside of some of the traditional activities, we may also meetup for beach cleaning events and things of that nature.

We are professional women working in the clean technology and sustainability space, from the entry level to the executive level. We meet once a month to network and learn the latest developments in the green movement from speakers and panelists. Topics covered include: renewable energy (solar, wind biofuel, etc), water, smart grid, biomass, carbon reduction, sustainable transportation, energy efficiency, sustainability, green buildings and many other technologies that aim to make our world a cle …

The San Francisco Chapter of the American Cetacean Society (ACS) supports the mission, vision, and values of the national organization: to protect whales, dolphins, porpoises, and their habitats through public education, research grants, and conservation actions. Whales, dolphins, and porpoises face more challenges today than at any other time in history. More than ever before, we must explore innovative, strategic ways to ensure the protection, safety, and welfare of cetaceans, and restore the …

The purpose of this meetup is to bring together people interested in the principles of Permaculture Design: Care of the Earth, Care of People, Share the Surplus. I have no preconceived idea of how it will evolve. My hopes are to create a place where ideas and action can come together to promote a resilient, compassionate and sustainable community.

This is a group for anyone interested in going green at the individual and group level via rapid prototyping of ideas. Let's learn by doing and sharing. We try to address two major questions in the context of every topic: 1. What can we do at a grassroots level to effect a positive change in our near neighborhoods? 2. What ideas can we implement to help influence larger bodies of the community and government? Our focus is on ideas that we can implement where we are and whose impact can be measur …

Ministry & support group dedicated to sharing the message and benefits of a vegan/ vegetarian lifestyle with the local Christian community through education, events & outreach: how a plant-based lifestyle promotes good stewardship of our health, resources, and environment; makes a dramatic impact on world hunger and caring for our neighbors; and demonstrates compassion and respect for all of God's creatures.

The purpose of this group is to network and create business connections and opportunities for social enterpreneurs and owners of green businesses. People who are part of this group can share ideas and connect for future business ventures.

A "weed" is just a plant out of place. "Weed Warriors" remove invasive plants that ruin wildlife habitat, increase fire danger, take over and crowd out everything else, or are otherwise bad actors in East Bay natural areas. "Friends of Five Creeks' Weekday Weed Warriors" remove harmful invasive plants in natural areas 10 AM - noon Tuesdays, at a different restoration site each week. Usually, work is followed by coffee and chat. Great way to stay fit and enjoy the outdoors and good company while …

Who am I.......at Source? We explore simple, profound, fun zen experiments to find out. These are based on Douglas Hardings' "On Having No Head: Zen and the Re-Discovery of the Obvious". I have been doing these experiments for 37 years----and still find them surprising!

We love to drink wine that matches our food interests (local, organically grown). If you want to explore this, please join us! Check out the blog at www.winecountrygeographic.com for more info.

Come join Sempervirens Fund docents on a free guided hike! Our expert volunteer docents lead hikes through the parks of the Santa Cruz Mountains and on lands currently owned and cared for by Sempervirens. Each hike has its own character and level of intensity. On a hike through the Lompico Forest, participants may walk through the depths of a steep redwood canyon in quest of the Lompico Creek headwaters or take a quiet river walk. A trip through the San Lorenzo River Redwoods will bring hikers t …

This is a group for parents who are looking for a fun, peaceful, and encouraging environment for their children! We often encounter children who use violence as a source of entertainment, and for those of us who have chosen to avoid those sources, it can be hard to find like-minded friends to connect with. Children in The Peaceful Playgroup will feel comfortable and confident connecting with friends who desire an enjoyable, positive, and gentle social experience free of weapon-play, fighting, …