Index of environmental articles
From Wikipedia, the free encyclopedia
The natural environment, commonly referred to simply as the environment, includes all living and non-living things occurring naturally on Earth.
The natural environment includes complete ecological units that function as natural systems without massive human intervention, including all vegetation, animals, microorganisms, soil, rocks, atmosphere and natural phenomena that occur within their boundaries. Also part of the natural environment is universal natural resources and physical phenomena that lack clear-cut boundaries, such as air, water, and climate.
- 100,000-year problem
- 2005 Malaysian haze
- 2006 Abule Egba pipeline explosion
- 2006 Alaskan oil spill
- 2006 Argentine nuclear reactivation plan
- 2006 Atlas Creek pipeline explosion
- 2006 Côte d'Ivoire toxic waste spill
- 2006 Danvers Chemical Fire
- 2006 Mumbai "sweet" seawater incident
- 2006 Southeast Asian haze
- 2006 Zakouma elephant slaughter
- 2007 Korea oil spill
- 2010 Biodiversity Target
- 2010 Biodiversity Indicators Partnership
- 4 Degrees and Beyond International Climate Conference
- Acid mine drainage
- Acid rain
- Adsorption Method for Sampling of Dioxins and Furans
- Aegean Sea (oil spill)
- Agency of Nuclear Projects
- Agenda 21
- Agreed Measures for the Conservation of Antarctic Fauna and Flora
- Agreement on the Application of Sanitary and Phytosanitary Measures
- Agreement on the Conservation of Albatrosses and Petrels
- Agricultural biodiversity
- Forestry
- Air engine
- Air pollution
- Air quality index
- Alarmism
- Alternative fuel
- Alternative fuel vehicle
- An Essay on the Principle of Population
- An Inconvenient Truth
- Ancient Woodland
- Antarctic Treaty System
- Arctic Climate Impact Assessment
- Arctic National Wildlife Refuge
- Arctic Refuge drilling controversy
- Arctic Waters Pollution Prevention Act
- Area of Outstanding Natural Beauty
- Asian brown cloud
- Atmospheric dispersion modeling
- Atmospheric Model Intercomparison Project
- Atomic bombings of Hiroshima and Nagasaki
- Automobile emissions control
- Aviation and climate change
- Aviation and the environment
- Aviation Environment Federation
- Aytzim: Ecological Judaism
- Bali Communiqué
- Bali roadmap
- Basel Convention
- Bees and toxic chemicals
- Beetle bank
- Bering Sea Arbitration
- Bhopal disaster
- Bicycle-friendly
- Big Green Gathering
- Bike lane debate
- Bikini atomic experiments
- Bin bag
- Bioaccumulation
- BioBlitz
- Biochemical oxygen demand
- Biodegradability prediction
- Biodegradation
- Biodesign Institute
- Biodiesel
- Biodiesel recipe
- Biodigester
- Biodiversity
- Biodiversity Action Plan
- Biodiversity hotspot
- Biodynamic agriculture
- Biodynamic wine
- Bioethics
- Biofilter
- Biofouling
- Biofuel
- Biogas
- Biogeographic realm
- Bioherbicide
- BioHome
- Bioindicator
- Biointensive
- Bioirrigation
- Bioleaching
- Biological agent
- Biological Dynamics of Forest Fragments Project
- Biological engineering
- Biological fuel cell
- Biological hazard
- Biological pest control
- Biological warfare
- Biological Wastewater Processor
- Biological Weapons Convention
- Biomass gasification
- Biomass to liquid
- Biomethanation
- Bionanotechnology
- Bioneers
- Bionics
- Biopiracy
- Bioplastic
- Biopreparat
- Bioprospecting
- Biorefinery
- Bioregional democracy
- Bioremediation
- Biosafety
- Biosafety level
- Biosecurity
- Biosecurity protocol
- Biosignature
- Biosolids
- Biosphere
- Biosphere 2
- Biosphere reserve
- Biostasis
- Biostatistics
- Biostimulation
- Bioswale
- Biotechnology
- Biotechnology and Biological Sciences Research Council
- Bioterror
- Bioterrorism
- Bioturbation
- Blast fishing
- Blue-ice area
- Blue ice (aircraft)
- Bonn Agreement (environment)
- Bottom fishing
- Bottom trawling
- Breeding Bird Survey
- Brominated flame-retardant
- Buffalo Commons
- Buffer zone
- Built environment
- Bureau of Oceans and International Environmental and Scientific Affairs
- Bush regeneration
- Bushmeat
- Buy Nothing Day
- By-catch
- Cadmium poisoning
- Callendar effect
- Calnev Pipeline
- Cancer
- Cancer Alley
- Car Free Days
- Carbofuran
- Carbon audit regime
- Carbon credit
- Carbon cycle
- Carbon dioxide sink
- Carbon emissions trading
- Carbon fixation
- Carbon flux
- Carbon footprint
- Carbon intensity
- Carbon offset
- Carbon sequestering
- Carbon tax
- Carbon tetrachloride
- Carfree Cities
- Car-free movement
- Car-free zone
- Carl Garner Federal Lands Cleanup Day
- Carpool
- Carrying capacity
- Cartagena Protocol on Biosafety
- Catch and release
- Certified wood
- Cetacean bycatch
- Cetacean Conservation Center
- Charles Darwin Foundation
- Chartered Institute of Environmental Health
- Chemical oxygen demand
- Chemical toilet
- Chemical warfare
- Chemical waste
- Chemical weapon designation
- Chemical weapon proliferation
- Chemical Weapons Convention
- Cherenkov radiation
- Chernobyl accident
- Chernobyl2020
- Chicago Climate Exchange
- Children's Environmental Exposure Research Study
- China Australia Migratory Bird Agreement
- Chionophile
- Chipko movement
- Chlorofluorocarbon
- Citizen Information Project
- Citizens for Alternatives to Chemical Contamination
- Citizens for Global Solutions
- City Beautiful movement
- Clark County Wetlands Park
- Clean Air Act
- Clean Air Act (1970)
- Clean Air Act (1990)
- Clean Air Act 1956
- Clean Development Mechanism
- Clean Up Australia
- Clean Water Act
- Clear Skies Act
- Clearfelling
- Climate Audit
- Climate change
- Climate changes of 535-536
- Climate commitment studies
- Climate Diagnostics Center
- Climate engineering
- Climate Group
- Climate house
- Climate model
- Climate modeller
- Climate Monitoring and Diagnostics Laboratory
- Climate sensitivity
- Climate surprise
- Climatic determinism
- Clinton Global Initiative
- Cloaca Maxima
- Cloud forcing
- Coal pollution mitigation
- Coastal Zone Management Act
- Cogeneration
- Committee on Climate Change Science and Technology Integration
- Common alcohol fuel mixtures
- Community bicycle program
- Community Climate System Model
- Community Fisheries Control Agency
- Community Forests in England
- Community Forests International
- Community garden
- Community gardening
- Compact fluorescent lamp
- Compactor
- Compost
- Compost windrow turner
- Composting toilet
- Comprehensive Test Ban Treaty
- Comprehensive Test Ban Treaty Organization
- Compressed air energy storage
- Computer Conservation Society
- Computer recycling
- Concrete recycling
- Conservation agriculture
- Conservation and Research Center
- Conservation area
- Conservation areas in Singapore
- Conservation areas of Portugal
- Conservation Authorities Act
- Conservation authority
- Conservation biology
- Conservation Centre Liverpool
- Conservation community
- Conservation designation
- Conservation district
- Conservation easement
- Conservation ethic
- Conservation genetics
- Conservation Halton
- Conservation headland
- Conservation Law Foundation
- Conservation medicine
- Conservation movement
- Conservation of American bison
- Conservation park
- Conservation status
- Conservation status (TNC)
- Conservationist
- Constructed wetland
- Consumerism
- Container composting
- Cooler Heads Coalition
- Coral bleaching
- COSMIC
- Country park
- Countryside Agency
- Countryside and Rights of Way Act 2000
- Countryside Commission
- Critical Mass (cycling)
- Critical Mass Energy Project
- Current Population Survey
- Cycling advocacy
- Dark-sky movement
- Darrieus wind turbine
- Dartmoor tin-mining
- David Suzuki Foundation
- DDT
- Dead tree edition
- Dead zone (ecology)
- Deaerator
- Debt-for-Nature Swap
- Decomposer
- Deconstruction (building)
- Decontamination
- Decontamination foam
- Deep ecology
- Deforestation
- Degrees
- Degradation
- Delay-action bomb
- Delayed nuclear radiation
- Denitrification
- Dental amalgam controversy
- Denudation
- Depleted uranium
- Depletion
- Desalination
- Desert Biosphere Reserve and Experimental Range
- Desert National Wildlife Refuge
- Desert National Wildlife Refuge Complex
- Desertification
- Developed country
- Dingo Fence
- Dioxins and dioxin-like compounds
- Directive on the patentability of biotechnological inventions
- Direct-methanol fuel cell
- Director of Agriculture, Fisheries and Conservation
- Directorate-General for the Environment (European Commission)
- Discovery of ozone depletion
- Diseases of affluence
- Distributed energy
- District heating
- Do not feed the animals
- Dolly the sheep
- Dolphin drive hunting
- Domestic water recycling
- Dongzhou protests of 2005
- Doomsday Clock
- Double-hulled tanker
- Dredging
- Drift mining
- Drift net
- Driftless Area National Wildlife Refuge
- Driftless Zone
- Drinking water
- Drip irrigation
- Drought
- Drum line
- Dry well
- Dual mode transit
- Dual piping
- Dugout (shelter)
- Dujiangyan Irrigation System
- Duke University Primate Center
- Dumpster diving
- Durable good
- Dust abatement
- Dustbin
- Dutch standards
Ea – Ec
- Early uses of petroleum
- Earth Charter
- Earth Day
- Earth First!
- Earth from the Air
- Earth house
- Earth immune system
- Earth in the Balance
- Earth observation satellite
- Earth science
- Earth sheltering
- Earth Simulator
- Earth Summit
- Earth Summit 2002
- Earthen dam
- Earthjustice
- Earthlife Africa
- EarthSave
- Earthwatch Institute
- Earthweek
- EcoAuto
- Eco-capitalist
- Ecocentrism
- Ecocide
- Ecocities
- Ecocomposition
- Ecocriticism
- Eco-defense
- Ecodriving
- EcoDuro
- Eco-efficiency
- Eco-evolution
- Ecofascism
- Ecofeminism
- Ecoforestry
- Ecohydrology
- Eco-industrial park
- Ecoinformatics
- Ecolabel
- Ecological anthropology
- Ecological burial
- Ecological crisis
- Ecological economics
- Ecological effects of biodiversity
- Ecological effects of transgenic plants
- Ecological energetics
- Ecological engineering
- Ecological footprint
- Ecological funeral
- Ecological genetics
- Ecological Genetics (book)
- Ecological health
- Ecological humanities
- Ecological imperialism
- Ecological Intelligent Design
- Ecological land classification
- Ecological modernization
- Ecological psychology
- Ecological sanitation
- Ecological Society of America
- Ecological wisdom
- Ecology
- Ecology (journal)
- Ecology Functional Groups
- Ecology movement
- Eco-marathon
- Economic vegetarianism
- Economics of biodiversity
- Economics of global warming
- Ecophagy
- Ecopsychology
- EcoQuest
- Ecoregion
- Ecoregion conservation status
- Ecoregions in Australia
- Ecoregions in India
- Ecoregions in the Philippines
- Ecoregions of Japan
- Ecoregions of Madagascar
- Ecoregions of New Zealand
- ECOS (BANC magazine)
- Eco-san
- Ecosophy
- Ecosphere (education)
- Ecosystem diversity
- Ecosystem ecology
- Ecosystem engineer
- Ecosystem services
- Ecosystem valuation
- Ecotage
- Ecotage!
- Ecotax
- Eco-terrorism
- Ecotone
- Ecotope
- Ecotopia
- Ecotourism
- Ecotoxicology
- Ecotype
- Ecovillage
- Ecovillage Training Center
- Eco-warrior
Ed – Eng
- Education for Sustainable Development
- Effective Cycling
- Effective population size
- Effects of global warming
- Effects of the automobile on societies
- Efficient energy use
- Effluent
- Electric bicycle laws
- Electrical energy efficiency on United States farms
- Electricity meter
- Electromagnetic environment
- Electromagnetic interference control
- Electromagnetic radiation
- Electronic pest control
- Electronic Road Pricing
- Electronic waste
- Electronic Waste Recycling Act
- Electronic Waste Recycling Fee
- Electrosmog
- Electrostatic precipitator
- Elephant Sanctuary, Hohenwald
- Emission factor
- Emission Reduction Unit
- Emission standard
- Emission trading
- Emissions trading
- Encyclopedia of World Problems and Human Potential
- Endangered Australian fauna
- Endangered species
- Endangered Species Act
- Energy Action Coalition
- Energy and Environmental Research Center
- Energy conservation
- Energy conversion
- Energy demand management
- Energy economics
- Energy-efficient landscaping
- Efficient energy use
- Energy harvesting
- Energy Hog
- Energy Information Administration
- Energy intensity
- Energy management system
- Energy Star
- Energy use and conservation in the United Kingdom
- English Nature
Env
- Environment Act 1986
- Environment Act 1995
- Environment Agency
- Environment and Conservation Organisations of Aotearoa New Zealand
- Environment Canada
- Environment Hawaii
- Environment of China
- Environment Victoria
- Environment Wales
- Environmental accounting
- Environmental agreement
- Environmental archaeology
- Environmental audits
- Environmental benefits of vegetarianism
- Environmental biotechnology
- Environmental Campus Birkenfeld
- Environmental Change Network
- Environmental chemistry
- Environmental concerns with electricity generation
- Environmental consulting
- Environmental Control System
- Environmental Defense
- Environmental degrees
- Environmental design
- Environmental determinism
- Environmental disaster
- Environmental economics
- Environmental effects of fishing
- Environmental effects on physiology
- Environmental engineering
- Environmental ethics
- Environmental factor
- Environmental finance
- Environmental geography
- Environmental geology
- Environmental gradient
- Environmental hazard
- Environmental health
- Environmental history
- Environmental history of the United States
- Environmental humanities
- Environmental impact assessment
- Environmental impact of aviation
- Environmental impact of fishing
- Environmental Impact Report
- Environmental Information Regulations 2004
- Environmental issues
- Environmental issues in Australia
- Environmental issues in Canada
- Environmental issues in the United States
- Environmental journalism
- Environmental justice
- Environmental law
- Environmental Life Force
- Environmental management
- Environmental management scheme
- Environmental Measurements Laboratory
- Environmental medicine
- Environmental Modeling Center
- Environmental movement
- Environmental movement in Australia
- Environmental movement in New Zealand
- Environmental movement in the United States
- Environmental policy
- Environmental protection in Japan
- Environmental psychology
- Environmental Quality Improvement Act
- Environmental racism
- Environmental restoration
- Environmental Risk Management Authority
- Environmental science
- Environmental security
- Environmental skepticism
- Environmental social science
- Environmental sociology
- Environmental standard
- Environmental statistics
- Environmental studies
- Environmental suit
- Environmental Sustainability Index
- Environmental technology
- Environmental Technology Laboratory
- Environmental Toxins and Fetal Development
- Environmental Transport Association
- Environmental vandalism
- Environmental vegetarianism
- Environmentalism
- Environmentalist
- Environmentally friendly
- Environmentally Sensitive Area
- Environmentally Sensitive Areas Scheme
- Envirothon
- Environmental impact of hydraulic fracturing
- Envisat
Ep – Ez
- Epcot
- Erosion
- ESA Space Debris Telescope
- Ethanol
- Ethanol (data page)
- Ethical consumerism
- Ethics of vegetarianism
- Ethnobiology
- Ethnobotany
- Ethylmercury
- EU energy label
- EU-Eco-regulation
- European Remote-Sensing Satellite
- EuroVelo
- Eutrophication
- EverLife Flashlight
- E-waste
- Exhaust gas
- Exhaust gas recirculation
- Exhaust pipe
- Exotoxin
- Exploding tree
- Exploding whale
- Exploring the Earth and the Cosmos
- Expo 2000
- Expo 2005
- Expo 2008
- Expo '74
- Expo '98
- Extensive farming
- Extinct Australian animals
- Extinct birds
- Extinction
- Extirpation
- Exxon Valdez oil spill
- Eyemouth Disaster
- Fair Air Association of Canada
- Fair trade
- Fallout shelter
- Fauna and Flora Preservation Society
- FernGully: The Last Rainforest
- Fertilizer
- Fire-stick farming
- Fish farming
- Fish ladder
- Fisheries management
- Flatulence
- Flexible-fuel vehicle
- Flotsam and jetsam
- Fluorescent lamp recycling
- Food miles
- Forest gardening
- Forest Principles
- Forestry
- Fossil fuel
- Fossil fuel power plant
- Fossil water
- Founder effect
- Founder population
- Four-minute warning
- Free range
- Free run
- Freecycle Network
- Free-market environmentalism
- Free-range eggs
- Fresh Air Fund
- Fresh Kills Landfill
- Friends of the Earth International
- Friends of the Earth, Inc. v. Laidlaw Environmental Services, Inc.
- Frontier Organic Research Farm Botanical Garden
- Fuel cell
- Fuel Cell Bus Club
- Fuel cell bus trial
- Fuel cell vehicle
- Fuel efficiency
- Fuel tax
- Fuel-efficient
- Full Belly Project
- Full cost accounting
- Full Depth Recycling
- Furan
- Futurama (New York World's Fair)
- Future energy development
- FutureGen
- Futurewise.org
- Gaia Movement
- Gaia philosophy
- Gaia theory (science)
- Garbology
- Garden city movement
- Gas-guzzler
- Genetic engineering
- Genetically modified food
- Genetically modified organism
- Geneva Protocol
- Genotoxic
- Genuine Progress Indicator
- George W. Bush
- Geostationary Operational Environmental Satellite
- German nuclear energy project
- Ghost net
- Give-away shop
- Glass Recycling
- Glassphalt
- Gleaning
- Gley soil
- Global 200
- Global 2000
- Global 500 Roll of Honour
- Global alert
- Global Atmosphere Watch
- Global Biodiversity Information Facility
- Global change
- Global Change Research Act
- Global climate
- Global Climate and Energy Project
- Global Climate Coalition
- Global climate model
- Global cooling
- Global dimming
- Global Earth Observing System of Systems (GEOSS)
- Global Ecolabelling Network
- Global economic monoculture
- Global Ecovillage Network
- Global Energy Network Institute
- Global Environment Facility
- Global Environment Outlook
- Global Greens
- Global Greens Charter
- Global health
- Global Oceanographic Data Archaeology and Rescue Project
- Global political monoculture
- Global strategic petroleum reserves
- Global Temperature-Salinity Profile Program
- Global warming
- Global warming and agriculture
- Global warming controversy
- Global warming potential
- GLOBE Program
- Glossary of climate change
- Gobi Desert
- Goldman Environmental Prize
- Great Lakes Commission
- Great Lakes Environmental Research Laboratory
- Great Recycling and Northern Development Canal
- Great Smog of 1952
- Green accounting
- Green Alliance
- Green ban
- Green belt
- Green belt (United Kingdom)
- Green Belt Movement
- Green building
- Green Building (MIT)
- Green certificate
- Green chemistry
- Green computing
- Green consumerism
- Green design
- Green economics
- Green energy
- Green fertilizer
- Green Gross Domestic Product
- Green lane
- Green lending
- Green manure
- Green money
- Green painting
- Green politics
- Green Revolution
- Green roof
- Green syndicalism
- Green tags
- Green tax shift
- Green technology
- Green vehicle
- Green Zionism
- Green Zionist Alliance
- Greenguard Environmental Institute
- Greenhouse effect
- Greenhouse gas
- Greening Australia
- Greening Earth Society
- Greenland ice core project
- Greenpeace
- Greenwash
- Grey goo
- Greywater
- Gulf War oil spill
- Habitat conservation
- Habitat destruction
- Habitat fragmentation
- Habitat II
- Haloalkane
- Handkerchief
- Hazardous material
- Hazardous Substances and New Organisms Act
- Hazardous waste
- Haze
- Health and Safety Executive
- Healthy city
- Healthy Forests Initiative
- Heat recovery ventilation
- Heavy industry
- Herbicidal warfare
- Herbicide
- High-occupancy vehicle
- Historical ecology
- History of nuclear weapons
- Home composting
- Honey
- Hot water heat recycling
- Hubbert peak
- Hubbert peak theory
- Human ecology
- Human feces
- Human powered vehicle
- Human-powered transport
- Hunting Act 2004
- HVAC
- Hydraulic fracturing
- Hydraulic fracturing in the United States
- Hydraulic fracturing by country
- Hydrogen cycle
- Hydrogen economy
- Hydrogen highway
- Hypermobile travellers
- Hypoxia (environmental)
- Idealised population
- Illegal logging
- Implications of peak oil
- Incineration
- Indicator plant
- Indicator species
- Industrial biotechnology
- Industrial ecology
- Industrial hemp
- Industrial Revolution
- Industrial waste
- Industrial wastewater treatment
- In-situ conservation
- Intact forest landscape
- Institute for Environmental Assessment
- Institute of Cetacean Research
- Integrated Pest Management
- Intensive farming
- Intercropping
- Intergovernmental Panel on Climate Change
- International Union for Conservation of Nature
- Introduced species
- Invasion biology terminology
- Invasive plants
- Invasive species
- Irrigation
- Island restoration
- Lactational amenorrhea method
- Land degradation
- Land management
- Land reclamation
- Land reform
- Land rehabilitation
- Land trust
- Land use
- Land use forecasting
- Landfill
- Law of the Rights of Mother Earth
- Le Peuple Migrateur
- Lead paint
- Lead poisoning
- Life cycle energy analysis
- Light pollution
- Limits to Growth
- Lithium ion battery
- Litterbug
- Livable Streets
- Living on Earth
- Local food
- Local Nature Reserve
- Locally unwanted land use
- Logging
- London commuter belt
- London congestion charge
- London Cycling Campaign
- London sewerage system
- Long-term Ecosystem Observatory
- Love Canal
- Low level waste
- Low-carbon economy
- Low-energy house
- Lowest Achievable Emissions Rate
- Lysocline
- Malaysian Nature Society
- Malthusian catastrophe
- Malthusianism
- Manifesto for a Sustainable Society
- Manufacturing resource planning
- Marine conservation
- Marine debris
- Marine Nature Reserve
- Marine park
- Marine pollution
- Marine Protected Area
- Marine reserve
- Marine reserves of New Zealand
- MARPOL 73/78
- Maryland Conservation Council
- Massachusetts Water Resources Authority
- Medical waste
- Medical Waste Tracking Act
- Medieval hunting
- Medieval Warm Period
- Megadiverse countries
- Mercy Mercy Me (The Ecology)
- Metagenomics
- Migratory Bird Treaty Act of 1918
- Millennium Development Goals
- Millennium Ecosystem Assessment
- Minamata disease
- Miscanthus
- Mitigation of global warming
- Monoculture
- Monsanto Company
- Monsanto Canada Inc. v. Schmeiser
- Montreal Biodome
- Montreal Protocol
- Mother Earth News
- Mother Nature
- Motorized bicycle
- Multiple chemical sensitivity
- Mutual assured destruction
- Nanotechnology
- Nanotoxicity
- NASA Clean Air Study
- NASA Earth Observatory
- Nasdaq Biotechnology Index
- National Ambient Air Quality Standards
- National Cleanup Day
- Native Forest Action
- Native Forest Action Council
- Native Forest Council
- Native Forest Restoration Trust
- Native planting
- Natural capital
- Natural capitalism
- Natural disaster
- Natural environment
- Natural Environment Research Council
- Natural gas
- Natural History Museum
- Natural landscape
- Natural phenomenon
- Natural region
- Natural resource
- Natural Resources Canada
- Natural Resources Conservation Service
- Natural Resources Defense Council
- Natural World
- Nature
- Nature (journal)
- Nature (TV series)
- Nature Clinical Practice Oncology
- Nature Conservancy Council
- Nature Heritage Fund
- Nature Publishing Group
- Nature reserve
- Nature Society (Singapore)
- Naturefriends
- Naturejobs
- Natureland Seal Sanctuary
- Nature's Classroom
- Neighborhood electric vehicle
- Neo-luddism
- New Jersey
- New Naturalist
- New town
- New Urbanism
- New Zealand Ecological Restoration Network
- New Zealand Nuclear Free Zone, Disarmament, and Arms Control Act 1987
- Newlands Reclamation Act
- Niagara Falls
- Night soil
- Nitrate Vulnerable Zone
- No-dig gardening
- Noise (environmental)
- Noise Control Act
- Noise health effects
- Noise pollution
- Non-renewable energy
- North American Butterfly Association
- North American smallpox epidemic
- North American Solar Challenge
- North Atlantic Marine Mammal Commission
- North Atlantic Salmon Conservation Organization
- North China Institute of Water Conservancy and Hydroelectric Power
- Northern Ireland Environment Agency
- Northwest Atlantic Fisheries Organization
- Not in Our Genes
- No-till farming
- NSW Wildlife Information and Rescue Service
- Nuclear winter
- Obsolescence
- Obsolescence Management
- Ocean colonization
- Ocean Dumping Act
- Ocean Dumping Ban Act
- Office of the Gene Technology Regulator
- Ogallala Aquifer
- Oglala National Grassland
- Oil desulfurization
- Oklo
- Old growth forest
- Oncomouse
- One-child policy
- Ontario Nature
- Open pollination
- Operation Crossroads
- Operation Grapple
- Operation Plumbbob
- Orchard
- Organic certification
- Organic electronics
- Organic farming
- Organic food
- Organic gardening
- Organic horticulture
- Organic lawn management
- Organic light-emitting diode
- Organic movement
- Organochlorine compound
- Our Common Future
- Our Posthuman Future
- Outline of forestry
- Over-consumption
- Overpopulation
- Oxygen saturation
- Ozone depletion
- Ozone depletion potential
- Ozone layer
- Ozone-oxygen cycle
- Pacific Marine Environmental Laboratory
- Palestinian Environmental NGOs Network
- Paper shredder
- Paper towel
- Paperless office
- Parametrization (climate)
- Paraquat
- Partial Test Ban Treaty
- Partial zero-emissions vehicle
- Particle radiation
- Particulate
- Passenger pigeon
- Passive solar
- Peak grain
- Peak water
- Pebble bed reactor
- Percy Schmeiser
- Periodicals
- Permaculture
- Permanent crop
- Permeable paving
- Persistent Organic Pollutant
- Persistent organic pollutants
- Pest (animal)
- Pest control
- Pesticide
- Pesticide misuse
- Pesticide poisoning
- Pesticide side effects
- Pesticide toxicity to bees
- Pesticides
- Phagy
- Phytotreatment
- Pigovian tax
- Pioneer plant
- Pioneer species
- Planetary boundary layer
- Planetary ecosynthesis
- Planetary engineering
- Planetary protection
- Planned obsolescence
- Plastic
- Plastic bullet
- Plastic goods
- Plastic mulch
- Plastic recycling
- Plastic shopping bag
- Plastic wrap
- Poaching
- Point of no return
- Political ecology
- Pollinator decline
- Pollutant
- Polluter Pays
- Polluter pays principle
- Pollution
- Polychlorinated biphenyl
- Polyculture
- Polymer chemistry
- Polymer clay
- Polymer degradation
- Polymer solar cells
- Polystyrene
- Polyvinyl chloride
- POP Air Pollution Protocol
- Population
- Population control
- Population decline
- Population density
- Population growth
- Population growth rate
- Population process
- Population size
- Population statistics
- Population transfer
- Population viability analysis
- Post-industrial economy
- Post-industrial society
- Power station
- Precautionary principle
- Preservationist
- Property and Environment Research Center
- Protected area
- Protected grasslands of North America
- Protocol on Environmental Protection to the Antarctic Treaty
- Pulpwood
- Quality of life
- Rabbit-proof fence
- Rabbits in Australia
- Rachel Carson
- Radiative forcing
- Radical environmentalism
- Radio Frequency Interference
- Radioactive decay
- Radioactive waste
- Rain garden
- Ralph Nader
- Ramsar Convention
- Ramsar list of wetlands of international importance
- RealClimate
- Rechargeable battery
- Reclaimed water
- Reconciliation Ecology
- Rectenna
- Recumbent bicycle
- Recycling
- Recycling of PET Bottles
- Recycling Symbol
- Red panda
- Red tide
- Reducing environment
- Refined resource
- Reforestation
- Refrigerant
- Refurbishment
- Regenerative (design)
- Regenerative fuel cell
- Registration, Evaluation and Authorization of Chemicals
- Remanufacturing
- Renewable and Appropriate Energy Laboratory
- Renewable energy
- Renewable energy commercialization
- Renewable energy development
- Renewable resource
- Renovation
- Repair and maintenance
- Repopulation of wolves in California
- Repopulation of wolves in Colorado
- Repopulation of wolves in Midwestern United States
- Research institutes
- Research Natural Area
- Residual fuel
- Resin identification code
- Resource
- Resource Conservation and Recovery Act
- Resource curse
- Resource depletion
- Resource economics
- Resource extraction
- Resource Management Act 1991
- Resource rent
- Restoration ecology
- Restricted use pesticides
- Restriction of Hazardous Substances Directive
- Resurrection ecology
- Reuse
- Right of public access to the wilderness
- Rimini protocol
- Rio Declaration on Environment and Development
- Río Plátano Biosphere Reserve
- Road pricing
- Road verge
- Roads Beautifying Association
- Roads to Resources Program
- Roof garden
- Royal Society of Wildlife Trusts
- RTECS
- Runoff (water)
- Rush hour
- Saline seep
- Salinity in Australia
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