Cannabis Sustainability


Denver strives for all businesses to operate as sustainably as possible. We work to research and share best practices in the cannabis industry to reduce their climate and environmental impact and partner to advance programs and policy.

Cannabis Sustainability Working Group

The Cannabis Sustainability Work Group mission is to promote sustainability in the cannabis industry through education, the development and dissemination of best practices, and the facilitation of dialogue between the cannabis industry, the community, and technical experts.

Members of the workgroup represent a variety of stakeholders, including cannabis business owners, consultants and contractors, government, and sustainability and policy experts. Each member of the Work Group participates in one of four committees: Events & Outreach, Best Management Practices & Data, Policy, Symposium, Commercialization, Language & Literacy.  

2020 Work Group Members:

  • Andrew Alfred, LivWell Enlightened Health
  • Tyler Ammerman, Gannett Fleming Project Development Corp.
  • Amy Andrle, L'Eagle
  • Dan Banks, Lightshade
  • Ron Basak-Smith, Sana Packaging
  • Courtney Cotton, Denvers Office of Climate Action, Sustainability & Resiliency
  • Judy Daniels, Soil Sage
  • Sandra Elkind, STO Respoinsible
  • Ben Gelt, Cannabis Certification Council
  • Bill Germain, PIK Sustainable
  • Fran Gindi, Ajoya
  • Tiffany Goldman, The Health Center
  • Dylan Klomhaus, Colorado Energy Office
  • Neil Kolwey, SWEEP
  • Penny Komes, Terrapin Station
  • Matt Lindsey, Stanley Bros.
  • Emily Long, Byers Scientific
  • Shawna McGregor, The Maverick PR
  • Joe Megsey, Good Chemistry
  • Jake Mitchell, Resource Innovations
  • Steven Morgan, Rocky Mountain Association of Energy Engineers and Boulder Energy Engineers
  • Sheilah Ophaug, Allay Consulting
  • Jacob Policzer, The Cannabis Conservancy
  • Brandon Rhea, Native Roots
  • Marc Ross, Vicente Sederberg
  • Miriam Schaffer, Ceres Greenhouses
  • Mariah Shaw, Good Chem
  • Derek Smith, RII
  • Joe Sullivan, Cultivate EO
  • Ambra Sutherlin, Boulder County
  • Kaitlin Urso, Colorado Department of Public Health and Environment
  • Andrew Varela, Rocky Mountain High

Current Best Practices

View the Cannabis Environmental Best Management Practices Guide (Updated October 2021) here.

Cannabis Environmental Best Management Practices Guide(PDF, 3MB) 


The Cannabis Sustainability Work Group released the Cannabis Environmental Best Management Practices Guide to provide cannabis cultivation businesses with a snapshot of relevant sustainable practices and a starting point for process optimization techniques that facilitate continual improvement. The Guide was written with input from sustainability experts and numerous stakeholders in the cannabis industry. If you have questions, or would like to contribute to future updates to the Guide, please email Cannabis Sustainability Working Group Chair Ben Gelt at

Business Sustainability Assistance

Certifiably Green Denver provides free, confidential, non-regulatory environmental assistance to Denver’s business community. Staff are dedicated to providing tailored advising to all types of businesses, including marijuana.


The Cannabis Sustainability Work Group holds public meetings bi-monthly on the fourth Thursday of the month.

Upcoming 2021 Meetings:

  • May 27th
  • July 22nd
  • September 23rd
  • November 25th

2021 Meeting Minutes:

2019 Meeting Minutes:

2018 Meeting Minutes:

For copies of minutes from meetings prior to what is shown here, please email

Cannabis Sustainability Symposium

The 2020 Cannabis Sustainability Symposium was held virtually October 5-9, 2020.

This event brought together top experts from across the country to present on the industry’s key environmental challenges and best management practices including energy efficiency, social equity, sustainable packaging, carbon sequestration, water conservation, medical benefits, waste reduction, emerging technologies, supply chain efficiency and impact assessments.

More information can be found here.