THE Visionaries

Our Leadership words round secondary



We offer members a team of best-in-class consultants and educators with decades of experience in the healthcare industry, married with experts in emerging climate solutions.  Our partners benefit from our unmatched ability to apply a proven framework for building your climate strategy and then work with you to identify, analyze, and support the implementation of the most impactful and successful emission reduction tactics for healthcare organizations.

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Our Leadership

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Advisory Board

Aamir Rehman, MD

Aamir an experienced healthcare and physician executive with over 23 years of industry experience. He brings a wealth of knowledge about healthcare, clinical issues, and startups to our board. He has served in senior management and executive roles directly for major stakeholders in almost every vertical of the healthcare industry including payers, providers, and employers.  Amir started his career at Oliver Wyman, and then spent several years in as a researcher and educator at the Advisory Board Company.  He has been in the health system trenches as Executive Vice-President and Chief Strategy Officer of Saint Peter’s Healthcare System.  Aamir has been an executive at Vizient and Mercer, and a leader in startups like Renaissance Health, and Naavis. Aamir lives just outside of Dallas, Texas.

Carle Falk

Carle Falk serves as an independent advisor and consultant to research companies and disruptive platforms looking to transform healthcare practice. After a thirty-year career at Philips, Optum, the Advisory Board (and Crimson) and E&Y, Carle has built a reputation for provocative thought leadership on topics of healthcare marketing, clinical operations and performance transparency, and provider-payer strategy. While she has spent the entirety of her career guiding leadership teams, Carle is now ready to drive the transformation. She currently serves as an Advisor to Mother Goose, a new maternal healthcare coordination platform committed to opening access to best-in-class perinatal services in the US for all mothers, regardless of race or income, and the University of Vermont Health Network in Burlington, VT. Across her career, Carle has pushed private and public sector healthcare organizations to challenge the status quo, drive innovation, and be an active part of improving service and outcomes for the long-term.

Deb Joelson

Deb Joelson is a senior executive who has led strategy in major academic institutions and health systems as they have tackled market disruptions. She has a deep expertise in M&A, business and network development, payer strategy, government relations and marketing.

Most recently, Deb was the EVP & Chief Strategy Officer of Wellforce, a $2B health system in Massachusetts that includes Tufts Medical Center. She was SVP of Strategic Services at Tufts Medical Center before moving to the system. Prior to her work at Tufts MC, she was VP of Planning and Network Development for Partners Community HealthCare (PCHI), the physician network of Mass General Brigham Health (formerly Partners HealthCare System).

Deb has served on numerous community boards and is currently on the Board of Trustees of the Boston Children’s Museum and George Washington University’s Medical Faculty Associates. She received an MBA with a concentration in Healthcare Management from Boston University and a BA from Tufts University.

Tom Sherman, MD

Tom has a long history in medicine, healthcare management, and environmental action. As the New Hampshire State Senate’s only physician, Senator Sherman has been a leader for environmental policy and public health in the state. He was the integral force in protecting the state’s drinking water from harmful PFAS chemicals. He serves as the former Chair of the New Hampshire State Senate Health and Human Services Committee. In leadership and as a member of more than 16 statutory commissions and committees, he works diligently to address challenges in healthcare, climate change, and environmental and drinking water contamination. He is a board-certified gastroenterologist, and a US News and World Report Top Doctor.

Bruce Solomon

Bruce has served as an executive at health systems including Mass General Brigham, Stony Brook University Medical Center, and the Louisiana State University Health System. Throughout his career, Bruce has been a leader in helping health systems develop energy efficiency programs, and currently serves as Senior Advisor, Albright Stonebridge Group, where he works internationally on global health solutions.

Michael Wagner

Michael Wagner is the Founder & Principal of Northstar, and serves as an independent advisor, teacher, and consultant focused on healthcare, leadership, culture building, and disruptive change. Michael’s healthcare expertise extends for over 30 years as both Vice Chair of Health and Human Services in the South Dakota Legislature as well as Executive Director and Chief Teaching Officer of The Advisory Board Company. Through his years of experience, Michael has personally worked with more than 750 healthcare organizations, professional associations, government agencies, the United States armed forces, insurance firms, pharmaceutical companies, and medical device manufacturers.



Hospitals and health systems contribute 10% of the greenhouse gas emissions from the United States. Particulate emissions from fossil fuels kill 8 million people annually today. The impacts of climate change will kill many more and lead to terrible health impacts for an even larger number.

Climate change is a disaster for human health.

This book first informs healthcare leaders about the issues and how their industry is being pressured to respond by investors, workers, customers, and the government. Then it looks at how other industries are taking climate action, and finally, how health systems across the United States can effectively lower their emissions and become leaders in driving down emissions of their whole community.