GHG

acronym: greenhouse gas(es)
Found on http://cdiac.ornl.gov/pns/acronyms.html#G

GHG

Green House Gases
Found on http://www.contractorsunlimited.co.uk/glossary.shtml

GHG

Greenhouse gas
Found on http://www.encyclo.co.uk/local/20824

GHG

GreenHouse Gas
Found on http://www3.sympatico.ca/dhaughey/j1930.htm

GHG

See greenhouse gas (GHG)
Found on http://www.encyclo.co.uk/local/21114
No exact match found