Gnarly Tree Sustainability Institute (GTSI) is a small, woman-owned, certified B-corporation. We specialize in building organizations’ capacity to address their social, environmental, and economic impacts; making sustainability resources go further; and preparing sustainability students to become sustainability leaders. We do so by teaming consultants with talented university faculty, researchers, and students. These experienced teams integrate policy and management theory with lessons from real-world experience and best practices to provide cost-effective, creative, and collaborative solutions.
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