Sustainability Open Hours

Tuesdays 9am - 11am

Have questions or want to share comments about sustainability initiatives in Mill Valley or Tiburon? Come speak to the Climate Action Coordinator during virtual open hours! They will operate on a first come first serve basis and be held weekly via Zoom.

Register for the meetings

Free Climate Action Workshops

Are you ready to make a difference? Join Resilient Neighborhoods for an informative and inspiring 5-session workshop designed for Marin home renters and owners. You will learn: 

• Practical tips and strategies to reduce your carbon footprint
• The power of individual action and collective impact
• How to make informed consumer choices
• Simple steps to reduce energy consumption at home (for home renters and owners!)
• Sustainable transportation options and habits.
• Eco-friendly food choices and waste reduction techniques
• Steps to be prepared for climate-related emergencies

Let's work together to build more sustainable lifestyles and a greener future.

Spring online teams start on Thursday, June 12, at 6:30 p.m. or Wednesday, June 18, at 4:30 p.m.

Sign up today!

Celebrating Pollinators and Compost!

Composting transforms organic waste into nutrient-rich material that improves soil structure, retains moisture, and supports microbial life. Healthy soil grows strong, diverse plants, especially native species that provide nectar and habitat for bees, butterflies, hummingbirds, and other pollinators.

Pollinators, in turn, help plants reproduce and sustain the food systems and ecosystems we rely on. Without pollinators, we lose biodiversity, food security, and climate resilience.

Together, composting and pollinator-friendly gardening creates a regenerative loop: food scraps → compost → healthy soil → thriving plants → supported pollinators → more food and habitat for all.

Simple Actions You Can Take This Month:

• Start composting at home and at work
• Plant native, pesticide-free flowers to support pollinators year-round
• Mulch with finished compost to build healthy soil and reduce the need for synthetic fertilizers
• Create pollinator habitats with water sources and natural shelter
• Avoid pesticides, herbicides, and other chemicals that harm soil organisms and pollinators

E-Waste Dropoff

June 20th 1pm - 4pm at the Belvedere Tiburon Library

Are you looking to safely dispose of your old electronics? This is your chance to clear out your clutter and help protect the environment by ensuring your electronic waste is recycled responsibly.

You can drop off old electronics in the library parking lot. Look for the canopy with a banner that reads "E-Waste Drop-off" by the parking lot exit.

Please not that the following items WILL NOT be accepted:

• All Non-Electronic Waste – Items that do not have BOTH a circuit board and a power cord
• Techno-Trash including: CD’s/DVD’s, VHS, Beta, Cassettes, DAT Tapes, & Floppy Discs
• Batteries: household (AA, AAA, DD, etc.) and car
• (All light bulbs) Fluorescent Light Bulbs, incandescent Light Bulbs
• Hazardous Household Waste, including Paint, Pesticides, Used Oil, Cleaning Supplies, Propane Tanks, Fire Extinguishers, or Tires
• Refrigerators (Full or Mini)
• Household Items: Furniture, Thermostats, Toys, Irons, Smoke Detectors

Learn more about the event and what is accepted

Green Fest Eco-Everyday: Small Actions, Big Impact

June 21st 11am - 2pm at the Belvedere Tiburon Library

A fun, hands-on community Green Fest for all ages hosted by the Belvedere Tiburon Library – celebrating sustainability and the power of small actions. Eco-fun for everyone!

Join us for:

• Hands-on, interactive cooking demo with The Zero-Waste Chef
• Giveaways
• Kids' Activities
• Pop-up Programs
• Nature Walk & Talk
• Try Our New Library of Things
• And Much More!

See additional event details

Stay Cool This Summer with Room Heat Pumps

June 18th 12pm - 1pm

Looking for an affordable, energy-efficient way to cool and heat a single room or apartment? Room heat pumps are compact, easy to install units that deliver powerful cooling in the summer and supplemental heating in the winter - perfect for renters, small homes, or anyone looking to cut energy costs.

Join this free webinar to learn how these units work, how they compare to ductless or whole home systems, and whether they're the right fit for your space.

Register for the webinar on Zoom

Shoreline Adaptation

Mill Valley is proactively planning for the growing risks of coastal flooding and rising groundwater with its first Sea Level Rise Shoreline Vulnerability Assessment and Adaptation Framework. Funded by a grant from the Ocean Protection Council, this effort will help the City understand local flood hazards and develop strategies to protect the shoreline.

The City is currently seeking proposals from expert consultants to assess vulnerabilities, propose adaptation solutions, and engage the community in shaping a resilient future. Learn more about this project and check out additional resources.

Stay informed! Sign up for email updates on Mill Valley’s sea level rise projects.

Marin Sustainability Tracker

Are you familiar with the Marin Sustainability Tracker? This tool from the Marin Climate and Energy Partnership (MCEP) is an interactive map that shows how each jurisdiction is doing in terms of sustainable development. It covers categories such as energy, transportation, greenhouse gas emissions, waste, and water.

Check out the tracker here

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Keep updated on local sustainability efforts and how you can get involved

For more events check out the Marin Climate Event Calendar