Green building in the United States is expected to rebound this year, after Leadership in Energy and Environmental Design projects represented 20 percent of all new put-in-place construction in 2012, experts say. The greatest expansion of green building will be in retrofits. Other expected trends in green building for 2013 include automation of building management through the cloud, greater use of solar power, growing awareness of freshwater supply problems, the increasing presence of zero-net-energy buildings, and an acceleration of green building in places such as China, Singapore, the EU and Brazil. Read the Sustainable Industries story here.