Blog

In the 1980s, monarch butterflies filled trees from Marin County to San Diego County during their migration season. This year, the Xerces Society reported only 1,914 monarch butterflies overwintering (the process by which organisms pass through or wa

Scientists measure the effect of carbon emissions by their global warming potential (GWP). That is based on the amount of heat the gas can absorb in the atmosphere. In a sense, the higher the GWP, the higher the “R-value” of the atmosphere. In a buil

I am in San Diego for the Energy Out West conference, and I want to write about it, but while it is fresh in my mind I want to fill you in on my latest Energy Upgrade California experience first.

Before getting on a plane for San Diego, Bill Stewart

Our furnace is approaching 25 years old and we have no cooling capabilities, so my wife Michele and I are looking into buying some new equipment before the temperature climbs this summer. I am especially interested in installing a mini-split heat pum

Sustainable Contra Costa is collaborating with Sports Basement to provide our community a discount on all online orders from August 23rd-29th. If you join Sports Basement's Basementeer program, you will get 10% off every item you purchase, and 10% of

Now is the time! You don't want to miss the deadline! The Leadership in Sustainability Award nominations will close on July 6th. Anyone can submit a nomination. All it takes is the idea that your favorite individual, nonprofit, government program, sc

Cleaner Contra Costa Challenge FAQs

• What is the Cleaner Contra Costa Challenge and why should I get involved?
  • The Cleaner Contra Costa Challenge is an online platform that helps Contra Costa residents reduce their carbon footprint by providing ti

For our community, kids, and collective futures, take action today for a sustainable tomorrow. Get started by joining the Cleaner Contra Costa Challenge!

Since April 2019, over 700 households have already joined the Challenge. Together, we’ve reduce

Here's how to share an event to your NextDoor profile:

Log in to NextDoor, and click on Events in the Menu, and Add Event:

Do you have a friend or relative who owns a small business?

As you know, during this time of social distancing due to the COVID19 pandemic, many local small businesses are really struggling. You can help them from home even if their “brick and mortar”

Earth Hour happens this Saturday, March 28th at 8:30 local time. Click flashlights, light lanterns, and get ready to turn electric lights out to celebrate Earth Hour! Wherever you come from, you can help our planet.

Earth Hour--a worldwide movement

Seasons Greetings and Happy New Year! 

Winter is a time to celebrate the love and abundance that we have experienced over the past year. It’s a time to be grateful for all that we have learned, embrace that which is working and let go of the things t

We hope everyone is enjoying competing in the Cleaner Contra Costa Fall Challenge! If you have not yet joined, it’s not too late to start! Complete as many actions as possible to earn points for a chance to win prizes and be recognized for your effor

Don’t panic! Maybe powering down is just what we need to understand how to be resilient – and that we are resilient beings! Instead of running out to buy our own backup generators, we could shut off our devices, break out the sweater and wool socks,

We are excited to announce our Cleaner Contra Costa Fall Challenge! Complete as many actions as possible to earn points for a chance to win prizes and be recognized for your efforts. The Challenge starts September 23, 2019 and goes until March 19, 2

Do you have your ticket yet for the 11th Annual Sustainability Awards Gala & Fundraiser? It's sure to be a memorable night. This fun and inspiring event supports and celebrates local individuals and organizations for their outstanding contributions a

Each year, our community comes together to celebrate and honor those who demonstrate outstanding commitment and leadership in making Contra Costa communities healthy, beautiful, clean, and resilient – for the long run. Awards are presented to individ