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group photo of 50 high school students and several staff members participating in San Mateo County's Youth Climate Ambassador Leadership Project
YCA APPLICATIONS
Empowering
youth and schools to take action.

Applications for the 2026-27 YCA Cohort are closed.

Applications are now closed for the 2026-27 cohort of Youth Climate Ambassadors. If you would like to be notified when the next cohort application opens, please email youthclimateambassadors@smcgov.org.

If you are looking for other ways to get involved in your community, check out the resources on our Become a Local Leader webpage.

The Latest News & Events

Free Tire Recycling Drop-Off Event @ Half Moon Bay
Sep
26
Free Tire Recycling Drop-Off Event @ Half Moon Bay

San Mateo County Sustainability Department is hosting a free tire recycling drop-off event for San Mateo County residents. There is a limit of 9 passenger or light truck tires per vehicle, as required by state law. Tires accepted at this event must be size R19.5 or smaller, with or without rims. Please ensure the tires are deflated. Tires from commercial, auto repair, and/or salvage businesses will not be accepted.

  • Location: Smith Field Little League Park, 400 Wavecrest Rd, Half Moon Bay
  • Date:  Saturday, September 26, 2026
  • Time: 10:00 AM – 2:00 PM
  • Collector: San Jose Conservation Corps

Event Flyers

Questions?

  • Call 1-888-442-2666

Residents must provide proof of residency in San Mateo County (e.g., driver’s license, utility bill, garbage collection bill, etc.).

For larger truck tires (tractor, truck etc.) contact the Sustainability Department at 1-888-442-2666 for recycling location information or visit www.recyclestuff.org.

LEARN MORE
Family of three walking along the shoreline at Cooley Landing in East Palo Alto.

How King Tides Help Us Prepare for the Future

In January, we had an amazing Coffee and King Tides event at Cooley Landing in East Palo Alto! We had a great time…
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Vector Control Technician Evan, from San Mateo County Mosquito & Vector Control District, overlooks Faber Marsh in East Palo Alto.

Mosquitoes and Climate Change

Guest authors: Angie Nakano, MS, Laboratory Director, and Rachel Curtis-Robles, PhD, Communications…
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Group photo of YCA cohort 7

Youth Climate Ambassadors Graduation & Community…

After two semesters of hard work, our 7th Youth Climate Ambassadors cohort officially graduated! At…
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