Celebrate
the Earth with the County of San Diego

We hope you enjoy these activities that
celebrate our beautiful planet and help you care for our natural
environment. We look forward to celebrating with you virtually all
year long, and in person at this year's Earth Day Fair at the County
Operations Center, 5500 Overland Drive, from 11 a. m. to 1 p.m. on
April 18, 2025.
This site offers something for
everyone including events you can join, how-to videos, hikes,
science and technology activities, e-book collections, and proactive
ways to live more sustainably. You can even visit museums and iconic
locations around the world on this site.
#COSDEarthDay
#EarthDay2025
Sustainability is core to our County mission. We’ve made it one of the components of our new overarching County vision: a just, sustainable and resilient future for all and it’s one of the central values we dedicate ourselves to as an organization. From big to small things, we are committed to making a difference for the environment.

Celebrate Our Earth at Any Time With These Fun Activities!
What will you do to support our Earth? Learn how to reduce your impact and become a better 'Earthling'!
Discover culture by exploring museums, visiting global landmarks, admiring artworks, and playing games.
Take a virtual journey around the world from your living room with 360° views of incredible landscapes!
Earth Month Events
Earth Fair at County Operations Center

Visit our booths and learn about the ways your County makes a difference protecting and investing in our planet.
11 a.m. – 1 p.m. on Monday, April 18
5500 Overland Drive,
San Diego 92123
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Thinking About an Electric Car?

Learn more at our EV Consumer Website.
Ask a Recycling Specialist
Want to learn tips and tricks about recycling from a County of San Diego recycling specialist? Check out this video!
How to Properly Plant a Tree
Learn the importance of replanting native trees to replenish the local tree canopy. Using a 5-gallon pot sample first, find the topmost root, then dig a shallow and wide planting hole, finally place the tree in. Don't forget to water your new plant!