More building owners are asking for geothermal heat pumps (GHPs) and other efficient heating-and-cooling alternatives, boosting demand for skilled workers who know how to assemble all the hydronic components. A union in Chicago has just begun to teach its workers formally on the ups and downs of GHPs. Instructors Paul Chapello (left) and William Wren use 4,000-gallon fish tank to keep geothermal installers in the loop. A nearby ground loop, partially exposed, also is tied into the system. Related Links: As More Buildings Go Geothermal, Project Teams Are Thinking Outside the Borehole Along Came a Spider� Editorial: More Straight Talk
The 2016 Summer Olympics boating and swimming events have put an international spotlight on what has been a long-running problem in Rio de Janeiro—untreated sewage and trash are clogging up major bays and waterways.