Galveston County Daily News, April 22, 2008 Going green is steadily becoming mainstream, as everyone from bankers to builders to homebuyers try to reduce, reuse, recycle and conserve energy. Mary Hannigan and husband Ed, a gynecologist at UTMB, soon will occupy a new, eco-friendly home at 1910 Postoffice St. where eco-amenities include a white roof to deflect heat and polyurethane foam insulation, part of which is recycled denim.