Adin Maynard is owner of HIS & HERS Energy Efficiency, an energy efficiency consulting firm in Northampton. Adin works with builders, architects and home-owners to examine specific energy challenges. He will welcome specific questions from audience members on home performance flaws in their home. Donations appreciated

Smith’s Bechtel Environmental Classroom designed by Coldham&Hartman is one of 5 buildings in the world that has successfully completed the Living Building Challenge, a rigorous green-building standard overseen by the International Living Futures Institute. The Hitchcock Center is planning to build its own Living Building Challenge building, come learn more about this revolutionary new way to design for sustainable living. Registration appreciated.

with Nancy Goodman

For nearly half the year, bark provides the best clue to tree ID, we will be keying out the trees to see what we can learn. Become familiar with the characteristic bark of different trees in different habitats and at different stages of growth. We will delve into the reasons why we find different trees and other plants and where even within the larger habitats we might find micro habitats with different trees & plants. This is an interesting spot as we will be walking along a dry bike path but we are actually going thru a swamp in many places. We also have some dryer areas which will make for an interesting mix of trees in different habitats. Bring binoculars, water, warm clothes in many layers as we will not be walking much if cold, Rain gear, lunch, warm waterproof boots, and the book Bark by Michael Wojtech if you have a copy. Members $18/Non-members $22 Space is limited, registration required.