In an effort to provide ventilation requirement consistency, ASHRAE is considering combining two standards into one for dwelling units of multifamily buildings of any height.
Americans used more renewable, fossil, and nuclear energy in 2013, according to the most recent data released by Lawrence Livermore National Laboratory.
The appeal challenges a ruling that allows the U.S. Environmental Protection Agency (EPA) to continue to allow production and importation of HCFC-22 refrigerant.