Terms

Greenhouse Gases (GHGs)--Gases such as carbon dioxide (CO2), methane (CH4),  nitrous oxide (N2O), and fluorinated gases, that trap heat in the atmosphere.  Read more here.

 
Materials Recycling Facility (MRF)--an indoor or outdoor site for sorting and processing recyclables such as paper products, plastics, glass and metals.  The first modern American MRF was located in Groton (CT) and designed by Peter Karter.

Municipal Solid Waste (MSW)--Trash, garbage, litter.  The # 1 MSW materials are paper-based products (US EPA).