The University Sustainability office accelerates action in policy and practice. We collaborate with campus and community partners to improve and implement best practices, and with institutional peers to develop innovative solutions to grand challenges. We provide students, faculty, and staff with unique, on-campus experiential learning opportunities and funding to transform their careers and our campuses.

Donielle Nolan (Doni for short) has been at Mason since 2010 when she started as an undergraduate student studying biology and volunteering as the president for the garden club. In 2014, she was hired part time to start the hydroponic greenhouse program at the President’s Park Greenhouse. She became full time staff in 2016 when she combined the greenhouse and gardens into a single program.
Doni received her Master’s of Science in plant science and pest management in 2018 from George Mason University and immediately began teaching sustainability courses as adjunct faculty. She is now pursuing her PhD in Biosciences at George Mason, studying root rot disease and microbial treatments in hydroponic systems. Her passion and joy are contagious as she engages and educates the community about sustainable food production, composting, herbal medicine and so much more. She collaborates with George Mason faculty, students and other stakeholders on innovative projects, including ones like Forager’s Forest for the Mason as a Living Lab program. If you would like to get involved with the Greenhouse & Gardens Program, or have a landscaping related project idea, please contact Doni at [email protected], or sign up for the weekly volunteer shifts.

In her current role as a Program Manager for Zero Waste Mason (ZWM), Colleen oversees a variety of reuse/recovery initiatives to decrease waste incineration and address basic needs insecurity. Items collected at Patriot Packout (PPO) and Mason’s free store are redistributed to Mason Patriots and local community members, preventing useful items from ending up in the trash.
Colleen also partners with team members in University Sustainability, Facilities Management, Housing and Residence Life, community organizations, vendors, and various Mason departments to support waste diversion initiatives and track Mason’s diversion improvement. These include the Better Bins Preview, ZWM standards testing, campus recycling initiatives (e.g., glass recycling), and the expansion of composting, food recovery, and resuables in campus operations. She is a Mason alumna and holds a Bachelor’s in Environmental and Sustainability Studies.

Amber is a sustainability expert with 10+ years of experience who manages George Mason’s institutional assessments and data reporting like AASHE STARS, GHG inventories, surveys, mapping, etc. She advises campus stakeholders and peers on strategies to integrate sustainability into their operations, policy, contracts, standards, purchasing, data reporting, and planning.
Amber has provided strategic input, including evaluation criteria and performance metrics, as a committee member on university RFPs and contract negotiations worth $300+ million. She has secured $1.4+ million in funding for innovative sustainability projects and initiatives to pilot and refine new campus standards for sustainability and has presented on findings at national conferences and webinars. A task force she co-led with ABS earned Virginia’s Governor’s Environmental Excellence Award–Gold in 2022 for its results on circularity and single-use plastics elimination. As a former National Wildlife Federation (NWF) Board Member, in 2020 she also authored NWF’s Plastics Reduction Partner certification program.
Amber began her career as a research associate at the Alliance to Save Energy and has consulted for the U.S. government, international organizations, and Fortune 500 clients. She taught at George Mason and was faculty liaison for its Environment and Sustainability LLC. Recent certifications include UW’s Data Visualization (2024), UNH’s Carbon Footprinting (2023), and Harvard’s Executive Education in Sustainability Leadership (2021), and she was one of 18 selected nationally for NREL’s Executive Energy Leadership Academy (2021).










