-
cogeneration
-
cold storage
-
collaborative consumption
-
collection of recyclables
-
collection rate
-
colloid
-
colonisation
-
combination effect
-
combined cycle power plant
-
combined heat and power plant
-
combined power station
-
combined transport
-
combined waste water
-
combustion
-
combustion engine
-
combustion gas
-
combustion residue
-
commerce
-
commercial area
-
commercial horticulture
-
commercial law
-
commercial noise
-
commercial transport
-
commercial vehicle
-
commercial waste
-
Commercial Waste Ordinance
-
commodity market
-
Common Agricultural Policy
-
common duckweed
-
common reed
-
common slipper shell
-
Commonwealth of Independent States
-
communal living
-
communication
-
community garden
-
Community legal system
-
community-pays principle
-
commuter traffic
-
compact city
-
compact fluorescent lamp