Sustainability Spotlight: Geothermal Heating at Weld Hill

A ⁠‌​​‌‌​​​​​‌​‌‌‌​‌‌‌​‌​​​‌‌​‌‌​‌​⁠talk about the geothermal heating and cooling system beneath Weld Hill, which uses dozens of wells to heat and cool a Harvard research building. Learn how the arboretum is working toward a greener campus.