List of environmental topics (O)

This is a list of environmental topics. They relate to the effect of human activity on the environment.

O

• obsolescence (affecting waste)
• Obsolescence Management
• (Ocean Climate Laboratory) National Oceanographic Data Center (NODC) (in the United States)
• ocean colonization
• Ocean Dumping Act
• Ocean Dumping Ban Act
• Office of the Gene Technology Regulator (in Australia)
• Ogallala Aquifer
• Oglala National Grassland
• oil desulfurization
• oncomouse (a type of genetically modified laboratory mouse)
• one-child policy
• (one-hundred-thousand-year problem) 100,000-year problem ("a discrepancy between the climate response ... and the forcing from the amount of incoming solar radiation")
• Ontario Nature (formerly Federation of Ontario Naturalists [FON]) (in Canada)
• open pollination
• Operation Grapple (in 1950s) (British nuclear testing operation)
• Operation Plumbbob (nuclear test series)
• organic certification
• organic electronics (plastic electronics)
• organic farming (see also list of organic gardening and farming topics)
• (organic fertilizer: included in) fertilizer (see under Organic fertilizers)
• organic food
• (organic garden: see) list of organic gardening and farming topics
• organic gardening (see also list of organic gardening and farming topics)
• organic horticulture
• organic lawn management
• organic light-emitting diode (OLED)
• organic movement
• (organic produce: see) organic food
• organochlorine compound ("many are toxic")
• Our Common Future (report from the UN)
• Our Posthuman Future: Consequences of the Biotechnology Revolution (book)
• over-consumption
• overpopulation
• oxygen depletion in the environment
• ozone-oxygen cycle
• ozone depletion
• ozone depletion potential