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About Green Roofs




Green Roof Researchers Alliance


Studying green roofs and promoting their expansion, the Green Roof Researchers Alliance (GRRA) is a consortium of over 60 researchers, educators, and policymakers from 21 different institutions. Founded in 2017, it is coordinated by NYC Audubon with funding from The New York Community Trust.

The GRRA facilitates collaboration among researchers studying the environmental benefits of green roofs, developing policy, creating curriculum, and working to advance green roofs in NYC in order to improve sustainability, resilience, biodiversity, and equitable access to urban nature.

Through mapping, environmental data collection and analysis of biological monitoring, the GRRA has created a centralized hub of NYC green roof information.

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Green Roofs NYC is a resource to inform residents, developers, and business owners about the benefits of green roofs and connect them with green roof resources, including policy, finance options, and educational curriculum.


Green Roofs NYC was developed in 2018 by New School students who saw a need to amalgamate various resources and research on the current state of green roofs in the city. Working with the Green Roof Researchers Alliance, funded by a grant from The New York Community Trust, is a clearinghouse of accurate, up-to-date information on green roofs in the city. Website content is contributed by the Green Roof Researchers Alliance, The New School, and the Urban Systems Lab. Green Roofs NYC is maintained by Stephanie Kale.



GRRA Managing Director

Dustin R. Partridge, New York City Audubon


Biodiversity and Monitoring Working Group

Matt Palmer, Columbia University


Environmental Properties Working Group

Lauren Smalls-Mantey, New York City Department of Health and Mental Hygiene


Education Working Group

Vicki Sando, PS 41


Mapping Working Group

Mike Treglia, The Nature Conservancy


Outreach Working Group

Timon McPhearson, The New School

Policy and Incentivizing Working Group

Danielle Spiegel-Feld, NYU Law Guarini Center on Environmental, Energy, and Land Use

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61 Members From 21 Institutions


New York City Audubon

The Wildlife Conservation Society

The Nature Conservancy

Fordham University

Columbia University

The New School

University of Oregon

Drexel University

Public School 41

NYU School of Law Guarini Center

National Wildlife Federation

NYC Parks & Recreation

Seeds to soil

The Durst Organization

The High Line

The Hope Program

Prime produce

The Jacob K. Javits Center

NY-NJ Port Authority

NYS Department of Environmental Conservation (DEC)

NYC Department of Environmental Protection (DEP)

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The Green Roof Researchers Alliance is funded by The New York Community Trust, A.P.J. O’Connor Fund, and the LuEsther T. Mertz Fund

The State of Green Roofs

in NYC Conference


Join the Green Roof Researchers Alliance in a day of discussions, workshops, and green roof visits! Learn about green roof policy, biodiversity, environmental benefits, and curriculum. Meet leading green roof scientists and educators and find out about cutting-edge research being conducted in New York City. 

Held annually, the State of Green Roofs in NYC is the only academic green roof conference in New York City that covers all recent science, education, and policy developments on green roofs.

Timon McPhearson, Mike Treglia, Greg Yetman, Rositsa Ilieva, Jaskirat Randhaw, and Emily Nobel Maxwell on Stage for a Roundtable Discussion at Last Year's "State of Green Roofs in NYC" Conference

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