David and Elva DelPorto of Newton Centre have spent 25 years transforming their home into a model of sustainable technology that integrates heat, food production, air purification, and wastewater treatment within a two-story solar greenhouse. They call it their "Urban Ark."
This Saturday, the Del Portos will open their home to the public and share both the successes and failures in their saga of self-sufficiency. The event, from 10 a.m. to noon, costs $20 ($15 for students and members of the Green Decade Coalition, which will receive the proceeds).
Anyone interested in the event is urged to call 617-969-5927 or visit the Green Decade Coalition online.
-- Connie Paige
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