Join CORE's Donor Community

Make an Impact on Our Community

Today & Into the Future

When you donate to CORE, you champion community health and resilience. You help us bridge the gap between aspiration and action, empowering everyone to reduce their energy consumption. This leads to cleaner air and water, lower energy costs, and a stronger local economy for generations to come.

Donate Today & Multiply Your Impact

In 2025, every dollar contributed to CORE will be matched by Atlantic Aviation at a rate of $1 for every $2 donated, effectively having 1.5 times the impact.

Commit to the Challenge & Multiply Your Impact

Atlantic Aviation has stepped forward with a transformative $300,000 challenge grant to accelerate our climate action initiatives.

How it Works



  • For every $2 you donate, Atlantic Aviation contributes an additional $1
  • Your $100 donation becomes $150 in climate action funding
  • Your $1,000 donation delivers $1,500 in impact
  • CORE is committed to raising a minimum of $600,000 this year to meet the challenge, for a total impact of $900,000
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Your Contribution Will Directly Support



When you support CORE through this challenge grant, you're not just donating, you're multiplying your impact and joining a community-wide movement to preserve our mountain environment for generations to come.


Take Action Today: Ways to Give

Make an Individual Donation

We make sure that your contributions toward sustainability stay here in your own backyard, leaving a lasting legacy for generations to come.


Donate today to fund immediate climate action, curb the pace of climate change, and protect the beauty and viability of our precious home. You can make a one-time gift, or streamline your giving with a recurring monthly donation.

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Join the Stirling Giving Society

CORE founder and long-time board member, Bill Stirling, devoted 30 years to CORE, our community, and the environment. He represents altruism, giving back, and making climate action possible for everyone, for a better tomorrow.


The Stirling Giving Society honors Bill’s legacy and gives CORE a platform to recognize our most loyal donors, allowing us to continue the work Bill started. With a gift of $2,500 or more, you can be a part of this high-level network of donors that provides CORE with the essential support needed to conserve our region’s natural resources, cut carbon emissions to mitigate climate change, and continue the work that Bill started.


As a member of the Stirling Giving Society, you will be a part of our CORE community, invited to all events, recognized in our annual appeal, and invited to an exclusive event with other members.

Join the Stirling Giving Society

Become a CORE Business Sponsor

As a CORE business sponsor, you will accelerate climate action work in the Pitkin, Eagle, and Garfield County communities by supporting our day-to-day initiatives, as well as our community outreach through events and programs.


Our business sponsorship opportunities include recognition at CORE events, recognition in the CORE newsletter which reaches more than 5,000 like-minded community members, invitations to exclusive events with community leaders, and more.


We would love to meet with you to discuss your business giving goals so that we can ensure you get the most and make the most impact with your sponsorship dollars.

Become A Business Sponsor

A Word from Our Donors

Celebrating 30 Years of Impact

Removed over 34,000 metric tons of carbon through 6,000 energy efficiency projects.

Connected community members and businesses with over $10 million in grants and rebates.

Advanced mitigation efforts to eliminate massive amounts of methane leaching from an abandoned coal mine.

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Questions? I am here to help.

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A picture of a platinum transparency 2024 certificate.