What is "ghg"

GHG may stand for:

• The FAA location identifier for Marshfield Municipal Airport (Massachusetts) in Marshfield, Massachusetts
• General Healthcare Group, a UK private healthcare group
• George H. Goble, inventor of multi-CPU Unix systems, refrigerants, and winner of the 1996 Ig Nobel Prize in Chemistry.
• Gesenius' Hebrew Grammar, a grammar book of Hebrew, written by Wilhelm Gesenius
• Greenhouse gas, a gas in an atmosphere that absorbs and emits radiation within the thermal infrared range
• Groothandelsgebouw, a building in the Netherlands
• Gruppenhorchgerät, a German sonar