On today’s episode of The Confluence: The Shell ethane cracker plant is now in operation, but some are concerned about it’s environmental impact; we speak to the lead designer behind the Tree of Life synagogue’s renovation and expansion; and a conversation with a high school math and computer science teacher who’s one of five educators nationwide being honored for their work.Today’s guests include: Reid Frazier, energy reporter at The Allegheny Front; Daniel Libeskind, architect and lead designer for the renovation of the Tree of Life Synagogue; and Kevin Gallagher, a teacher at Keystone Oaks High School.