The Sustainability Tour at Macalester College Markim Hall (1600 Grand Ave., St. Paul) is scheduled for 10 a.m. on June 5. The building features native landscaping, energy efficiency, water conservation, and solar panels. For these reasons and more it has been certified as LEED Platinum, the highest level of certification for energy efficiency and environmental design by the U.S. Green Building council. Transportation details will be relayed in the May/June Voter newsletter, and will include options to either carpool or take public transportation.