A forum to consider how to make net-zero carbon building construction a reality in Boston will be held Thursday, June 15, from 7:30 to 9 p.m. at the First Church in Jamaica Plain at 6 Eliot St. The gathering is the second in a Jamaica Plain Forum mini-series on transitioning to green living, and will address sustainable ways to retrofit buildings for increased energy efficiency given technical, financial, legal and political challenges, as well as how Bostonians can demonstrate the importance of supporting local, renewable sources of energy. The event is co-sponsored by the Boston Clean Energy Coalition. Per the meeting notice, "The initial Imagine Boston 2030 report describes a major construction boom but does not call for the state-of-the-art efficiency requirements essential to keeping this development from locking us into new fracked-gas infrastructure to power new buildings and decades of dependence on fossil fuels. We urgently need net-zero carbon requirements for all new buildings in Boston."