Sun Valley Idaho · October 13–14, 2026

Bringing together leaders shaping climate action across mountain, resort, and rural communities — sharing what's working and building what's next.

days until the Summit

About the Summit

The Pre-Eminent Gathering for Mountain Town Climate Action

Since launching in 2019, the Summit has evolved into the pre-eminent networking and knowledge-building event for local elected officials and sustainability teams, ski resort leaders, nonprofits and local businesses — all committed to accelerating climate action in mountain, resort and rural communities throughout the US.

The Mountain Towns 2030 Climate Summit visits Sun Valley during the 90th anniversary of the iconic Sun Valley Resort, hosting a gathering dedicated to advancing climate action and mountain town stewardship.

Designed for collaboration and built for progress, this two-day gathering connects colleagues from mountain, resort, and rural communities to share what's working and accelerate what comes next.

At a pivotal moment for our mountain communities, there's never been a more important time to lead.

Program

Explore The Agenda

The agenda is taking shape – designed around the real challenges and opportunities facing mountain communities. Check back as sessions and details are added.

Explore the Agenda

Join Us

Register Today

Be part of the gathering shaping mountain town climate action and stewardship. Secure your place in Sun Valley this October.

Register Now

Voices

Featured Keynote Speakers

From local climate champions to internationally recognized voices, this year's Summit will feature speakers delivering the ideas, urgency, and leadership our mountain communities need right now.

Deep Dive Sessions

50+ Deep Dive Sessions. 100+ Speakers. Real Solutions.

Each afternoon, choose from a packed agenda of Deep Dives and Solutions Labs — interactive, work-focused sessions led by peers and practitioners tackling the climate and resilience challenges facing mountain communities and resorts.

Come ready to learn, ask questions, share what's working, and leave with practical tools, ideas, and solutions you can put to work in your community.

See the Agenda Here

Summit Host

Rollie Williams

Host, Comedian & Activist

We are excited to announce that Climate Towns TV's Rollie Williams will be the MT2030 Climate Summit host once again this year! 🎤

With his expert insights, thoughtful interview skills, and great sense of humor, this year's Summit is one you won't want to miss!

Spread the Word

Help Us Share the Summit

We'd love your help getting the word out. Find social assets, caption templates, and a personal invite email — ready to share in a click.

Share the Summit

2026 Climate Action Awards

Nominate a Climate Leader

Winners will be announced live at the Summit. Nominate a community, project, or leader for a 2026 Climate Action Award before nominations close September 17, 2026.

Submit a Nomination

Growing Every Day

Organizations Attending the SV26 Summit

173+ mountain towns, resorts, agencies, and climate organizations have already confirmed for Sun Valley this October — join them.

4CORE All Mountain Podcast Alterra Mountain Company American Forests Arapahoe Basin Ski Area Aspen One Axiom Engineering Group, PLLC Big Sky SNO Blaine County Blue Forests Blue Mountain Bogus Basin Mountain Recreation Area Boise State University Breckenridge Grand Vacations Brendle Group Bridger Bowl Ski Area BurnBot Cascadia Consulting Chaffee County, Colorado City and County of Denver City of Aspen City of Bend City of Boise City of Boulder City of Brighton City of Columbia City of Driggs City of Durango City of Hailey City of Ketchum City of Lafayette City of Louisville, CO City of McCall City of Missoula, MT City of Sandpoint City of South Lake Tahoe City of Victor, ID City of Whitefish CLEAResult Climate Mayors Climate Smart Missoula Colman Coaching Colorado Association of Ski Towns (CAST) Colorado Circular Communities (C3) Colorado Communities for Climate Action Colorado Energy Office Colorado Mountain College Colorado Tourism Office Columbus Pacific Development CORE Crystal Mountain Crystal Mountain Consulting CU Boulder D.A. Davidson & Co. EcoAction Partners EKc Encompass Films Energy Smart Colorado Energy Systems Group Environmental Resource Center Environmental Voter Project Fehr & Peers Transportation Consultants Frontline Wildfire Defense Future Roots Global Catalyst Group14 Engineering Gunnison County Hakuba47 High Country Conservation Center Home Dome Fire Protection ICLEI USA Idaho Conservation League Idaho Power Keep Tahoe Blue Ketchum Sustainability Advisory Council League to Save Lake Tahoe Lookout Partners, LLC Lotus Engineering & Sustainability McKinstry Mead and Hunt Measure Meant Miller Timber Services, Inc. Missoula County MMGY Global Mt. Rose - Ski Tahoe MT2030 National Forest Foundation National Ski Areas Association Nature is Nonpartisan NBC Sports North Tahoe Citizens' Climate Lobby; 100% Renewable Truckee Ogden City OZ Architecture Panorama Mountain Resort Park City Community Foundation Park City Non Profit Advisory PepsiCo Pitkin County Planetary Thinking Portneuf Resource Council Potential Energy Coalition POWDR Project Big Wood RECET/Local Leaders Partner Resort Municipality of Whistler Revelstoke Mountain Resort Riseline Foundation Routt County Salt Lake City San Miguel County San Miguel Power Association Schneider Electric SCJ Alliance SE Group Shoshone Bannock Tribes Snowbird (as a member of POWDR) Snowshoe Mountain Stio STRAVEN Strategy Group Summit County, UT Tahoe Fund Taos Community Foundation Taos County Taos Ski Valley, Inc. Telluride Foundation Teton County Teton Resilience Network Teton Village Association The GreyEdge Group The Keystone Concept The Nature Conservancy The Yellowstone Club Town of Avon Town of Breckenridge Town of Crested Butte Town of Dillon Town of Eagle Town of Estes Park Town of Frisco Town of Jackson Town of Keystone Town of Mammoth Lakes Town of Mountain Village Town of Mt. Crested Butte Town of Ridgway Town of Silverthorne Town of Snowmass Village Town of Taos Town of Telluride, CO Town of Truckee Town of Vail Town of Winter Park Tradewater Trane University of Colorado University of Idaho University of Vermont USDA Forest Service Utah State University Valley Chamber Village of Taos Ski Valley Walking Mountains Western Colorado University Western Urban Sustainability Advisors Westlight Energy White Tree Foundation Winter Park Resort Winter Wildlands Alliance Wisp Resort and Wintergreen Resort WSB Xcel Energy Yellowstone Club ZGF Architects LLP
Register Now

2026 Summit Partners

Thank You to Our Partners

We're grateful to our corporate partners for their support. To learn more about sponsorship opportunities, please contact Chris Steinkamp at chris@mt2030.org.

Presenting Partner

Host Communities

Peak Partners

Basecamp Partners

Ally Partners

Host Community Partners

Summit Affiliate Partners

Sun Valley, Idaho — October 13–14, 2026

Register For The Summit

Be part of the gathering shaping mountain town climate action and stewardship. Early registration is open now for local governments, mountain resorts and nonprofits.

Register Now Become a Partner