Beneath the Arnold Arboretum, a quiet clean-energy system is helping power plant science.
The Weld Hill Building uses geothermal heating and cooling—drawing on the earth’s steady underground temperature and highly efficient electric heat pumps to keep labs and offices comfortable year-round, without relying on fossil fuels.
In the video below, Head of Operations and Project Management Danny Schissler explains how the geothermal system, combined with on-site solar power, helps reduce carbon emissions while supporting research, sustainability, and the living landscape for generations to come.