Owners of homes and other buildings containing Chinese drywall now have a clear directive from the federal government: Tear out "all possible problem drywall" and replace it, the U.S. Consumer Product Commission and Dept. of Housing and Urban Development advised on April 2. Photo: CPSC Homeowners should replace Chinese drywall (slightly gray in color) with new wallboard (white in color), federal agencies say. In addition, owners should replace all electrical systems, gas piping, sprinkler systems, smoke alarms and carbon monoxide alarms, whose metal components corrode under high levels of hydrogen sulfide. Who will pay for the work remains unclear, but
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.