Training sustainability leaders for tomorrow by creating sustainable solutions today.

“Many business leaders are seeing the relationship between long term success and sustainability, and that’s very heartening.”  –  Jacqueline Novogratz

“If we intend to provide a better life, and a better world for future generations, we can’t ignore the quality of the environment we leave them.”  –  John Kasich

“Success in management requires learning as fast as the world is changing.”  –  Warren Bennis

Gnarly Tree Sustainability Institute is a woman-owned, benefit corporation based in Bloomington, Indiana that brings together talented university faculty, researchers and students to help clients develop creative, intelligent, and collaborative solutions to the world’s complex sustainability challenges. Our consulting initiative exists to extend the resources of organizations early in their sustainability journey; to build capacity of our clients to address their social, environmental, and economic impacts; and to prepare sustainability students to become sustainability leaders.

Training sustainability leaders for tomorrow by creating sustainability solutions today.


SPEA researchers help produce World Bank policy guide on carbon pricing – IU Bloomington

Kenneth Richards said governments have shown renewed interest in using carbon taxes to reduce emissions of greenhouse gases associated with climate change. Over three-fourths of the world’s nations have developed targets for reducing greenhouse gases under the Paris Agreement on climate change and are looking for cost-effective ways to meet their goals.

“It is important that policymakers understand the implications of their decisions when they are designing carbon taxes,” Richards said. “With this World Bank publication, we have translated the extensive body of research to provide accessible guidance for practitioners. As the case studies demonstrate, each government has different needs, objectives and circumstances.”

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The “Gnarly Tree” company name holds numerous special meanings for its founders. The company works alongside its clients to solve complex and challenging, some might say “gnarly” problems. Associates often find it useful to employ the use of decision “trees” in the development of appropriate management strategies. Trees also have symbolic meaning across various cultures, often used to represent strength, security, friendship, protection, wisdom, creation, and resilience in the face of adversity.