Mayo Clinic joins Better Climate Challenge

July 7, 2022

Mayo Clinic recently joined the Better Climate Challenge, an initiative launched by the United States Department of Energy that encourages organizations to set ambitious goals for reducing greenhouse gas emissions.

Mayo Clinic is committed to cutting certain greenhouse gas emissions by 50% and reducing energy use by 20% within 10 years.

Participating in the Better Climate Challenge requires Mayo to develop and submit a plan to reduce greenhouse gas emissions, share progress and solutions with other organizations, and report greenhouse gas emission data each year during the program’s 10-year time frame.

Why Mayo is joining the challenge

Mayo Clinic leaders saw many good reasons to join the Better Climate Challenge.

Health care is responsible for 8.5% of greenhouse gas emissions in the U.S. according to Health AffairsHospitals generate more than one-third of those emissions. Eliminating greenhouse gas emissions also can reduce or eliminate other pollutants, such as nitrous oxides, sulfur oxides and particulate matter

To reduce greenhouse gas emissions, Mayo will focus its reduction efforts on energy, transportation and other emissions, such as from anesthetic gases and refrigerants.x

“Commitment to the Better Climate Challenge marks a pivotal moment in Mayo Clinic’s sustainability journey. Meeting this target will be challenging. However, with teamwork and investment, I am confident Mayo Clinic will achieve the goal,” says John Dillon, M.D., chair of the Mayo Clinic Green Committee.

Early successes

Mayo has worked to reduce energy consumption for many years at a pace and in a manner that maintains the highest safety and quality in patient care.

For example, in 2011, the institution set a goal to reduce its energy consumption in Rochester by 20% by 2020. Mayo reached that goal in 2017, almost three years ahead of schedule, resulting in $26 million in cumulative energy savings.

The savings were achieved through projects like:

  • Installing energy-efficient LED lighting in buildings and staff ramps.
  • Updating to more efficient computer workstations.
  • Recalibrating building automation systems that control a building’s energy needs.
  • Resealing ducts.
  • Using energy-efficient designs in new construction.


Energy efficiency also is at the heart of new construction projects, such as the new hospital building at Mayo Clinic Health System in La Crosse, Wisconsin. That project will replace the current hospital building with a new six-floor hospital with 70 beds. The new hospital will incorporate geothermal energy to provide heating and cooling, which will be 24% more energy-efficient than a traditional system. It also will generate 42% less greenhouse gas emissions.