Energy audits provide opportunities to save energy, no matter how energy efficient the buildings might already be. Can the City of Boston provide a fresh perspective to the City of Atlanta with additional energy saving opportunities? In Episode Two of the Better Buildings Challenge SWAP 3, brought to you by the U.S. Department of Energy, watch the team from Boston conduct an energy audit of Atlanta’s buildings. Follow along to see what energy efficiency opportunities they can find at the Hartsfield-Jackson Atlanta International Airport, the world’s busiest passenger airport and the Hemphill Water Treatment Plant where all the city’s drinking water is treated.