Entry
Reader's guide
Entries A-Z
Subject index
Vegetarianism
Vegetarianism, in its broadest definition, is a dietary pattern where meat, fish, and poultry are excluded. Frequently, vegetarians will exclude dietary products that include animal by-products and derivatives; however, vegetarian is a broad term that can have varied definitions and meanings. Some self-defined vegetarians may include animal products ranging from eggs and dairy, to seafood, and even occasional meat. Vegetarian dietary patterns are found throughout the world today and are influenced by a myriad of factors ranging from religious beliefs, economic influence, meat availability, environmental beliefs, and ideological beliefs.
In less-developed nations, large populations have primarily vegetarian diets due to economic factors, not choice.

Broadly speaking, vegetarians can be broken into four primary groups: lacto ova vegetarians, lacto vegetarians, vegans, and fruitarians. Lacto ova vegetarians do not ...
- Agriculture
- Agriculture
- Agroecosystems
- Agroforestry
- Agronomy
- Aquaculture
- Arbor Day
- Arid Lands
- Bananas
- Beneficial Use Doctrine
- Biotechnology
- Bureau of Land Management (U.S.)
- Cacao
- Cash Crop
- Cattle
- Coffee
- Collective Agriculture
- Community Gardens
- Composting
- Consumers, Ecological
- Crop Plants
- Crossbreeding
- Dandelions
- Department of Agriculture (U.S.)
- Domestication
- Farmers' Markets
- Farming Systems
- Farmland Conservation
- Fast Food
- Food
- Gardens
- Grazing
- Integrated Pest Management
- Irrigation
- Livestock
- Mad Cow Disease
- Meat
- No-Till Agriculture
- Organic Agriculture
- Parasites
- Pastoralism
- Pesticides
- Pests, Agricultural
- Plantation
- Plants
- Potatoes
- Precipitation
- Ranchers
- Rice
- Salmon
- Seasons
- Seed Bank
- Seeds, Agrodiversity and
- Sheep
- Smallholders
- Soil Science
- Soils
- Soybeans
- Sugar
- Terraces and Raised Fields
- Tobacco
- Tomato
- United Farm Workers
- Urban Gardening and Agriculture
- Weather
- Wheat
- Animals
- Amphibians
- Animal Rights
- Animals
- Animism
- Aquaculture
- Aquariums
- Arctic National Wildlife Refuge
- Balance-of-Nature Paradigm
- Bison
- Black Death
- Boll Weevil
- Bovine Growth Hormone
- Bovine Spongiform Encephalopathy
- Cane Toad
- Cattle
- Chimpanzees
- Circuses
- Cloning
- Communication, Interspecies
- Crossbreeding
- Deer
- Dodo Bird
- Dogs
- Dolphins
- Domestication
- Elephants
- Endangered Species
- Endangered Species Act (1973)
- Evolution
- Extinction of Species
- Fire Ant
- Fish and Wildlife Service (U.S.)
- Fish Ladders
- Fisheries
- Food Webs (or Food Chains)
- Fossey, Dian
- Genetics and Genetic Engineering
- Goodall, Jane
- Grazing
- Habitat Protection
- Herders
- Hunting
- Insects
- Integrated Pest Management
- Invasive Species
- Keystone Species
- Lab Animals
- Livestock
- Mad Cow Disease
- Meat
- Migration
- Mosquitoes
- National Marine Fisheries Service
- Native Species
- Northern Spotted Owl
- Overfishing
- Overgrazing
- Overkill Hypothesis
- Overpopulation
- Parasites
- Passenger Pigeon
- Pesticides
- Pests, Agricultural
- Pets
- Poaching
- Predator/Prey Relations
- Primates
- Safaris
- Salmon
- Save the Whales Movement
- Sea Turtles
- Sheep
- Shrimp
- Species
- Tigers
- Tobacco
- Tuna Fishing
- Vegetarianism
- Whales and Whaling
- Wild Horses
- Wild versus Tame
- Wildlife
- Wolves
- Zoos
- Biology and Chemistry
- Acquired Immune Deficiency Syndrome (AIDS)
- Allergen
- Analytical Chemistry
- Antibiotics
- Arsenic
- Asbestos
- Atrazine
- Biocentrism
- Biodiversity
- Bioenergy
- Biogeochemical Cycle
- Biological Oxygen Demand
- Biomagnification
- Biomes
- Biophilia
- Biopiracy
- Bioprospecting
- Bioregionalism
- Biosphere
- Biosphere Reserves
- Biotechnology
- Botany
- Brucellosis
- Bt (Bacillus Thuringiensis)
- BT Toxoid
- Chromosomes
- Conservation Biology
- Convention on Biodiversity
- Cryptosporidium
- DDT
- Deoxyribonucleic Acid
- Disease
- Drugs
- Fecal Coliform Bacteria
- Gene Therapy
- Genetic Diversity
- Genetic Patents
- Genetically Modified Organisms
- Genetics and Genetic Engineering
- Green Chemistry
- Health
- Human Genome Project
- Mad Cow Disease
- Malaria
- Malnutrition
- Mercury
- Methane
- Methyl Tertiary-Butyl Ether
- Microbes
- Mold
- Mutation
- Opium (and Heroin)
- Organophosphates
- Oxygen
- Polychlorinated Biphenals
- Radioactivity
- Sex
- Sexually Transmitted Diseases
- Silicosis
- Smoking
- Sterilization
- Syphilis
- Toxaphene
- Toxic Releases Inventory
- Transmissible Spongiform Encephalopathies
- Trichloroethylene
- Vaccination
- Volatile Organic Compounds
- Climate
- Air Conditioning
- Arid Lands
- Blizzards
- Butterfly Effect
- Climate
- Climate Modeling
- Climate, Arctic and Subarctic
- Climate, Arid and Semi-Arid
- Climate, Continental
- Climate, Humid Subtropical
- Climate, Marine West Coast
- Climate, Mediterranean
- Climate, Tropical
- Climatology
- Currents, Ocean
- Desertification
- Drought
- Dryland Farming
- Earthquake
- Everglades
- Floods and Flood Control
- Framework Convention on Climate Change
- Glaciers
- Global Environmental Change
- Global Warming
- Hadley Cell
- Heat
- Heat Island Effect
- Heat Wave
- Humidity
- Hurricanes
- Ice Ages
- Intergovernmental Panel on Climate Change
- Microclimates
- Seasons
- Solar Energy
- Thunderstorms
- Tides
- Tornadoes
- Trade Winds
- Tropics
- Tsunamis
- Tundra
- Union of Concerned Scientists
- United Nations Framework Convention on Climate Change
- Variability
- Weather
- Weather Modification
- Conservation and Ecology
- Adaptation
- Adaptive Management
- Agroecosystems
- Agronomy
- Alternative Energy
- Arbor Day
- Arctic National Wildlife Refuge
- Atmosphere
- Atmospheric Science
- Balance-of-Nature Paradigm
- Boreal Forest
- Butterfly Effect
- Central Park (NY)
- Clear-Cutting
- Community Forestry
- Community Gardens
- Community-Based Conservation
- Conservation
- Conservation Biology
- Conservation Easements
- Conservation Reserve Program
- Coral Reefs
- Cultural Ecology
- Dams
- Deep Ecology
- Deforestation
- Dendrochronology
- Deposit-Return Charges
- Disequilibrium
- Drilling
- Earth Day
- Earth First!
- Eastern Wilderness Act
- Ecological Footprint
- Ecological Imperialism
- Ecological Modernization
- Ecology
- Ecosystem
- Ecotone
- Eden, Garden of
- Edge Effect
- Environmental Protection Agency
- Everglades
- Farmland Conservation
- Forest Service
- Garden Cities
- Glacier National Park
- Habitat Protection
- Human Ecology
- Industrial Ecology
- Joint Forest Management
- Land and Water Conservation Fund Act
- Landscape Ecology
- League of Conservation Voters
- Long Term Ecological Research Network
- Marine Science
- Migration
- National Geographic Society
- National Parks
- Nature Conservancy
- Nixon, Richard Administration
- Olmstead, Frederick Law
- Overpopulation
- Pests, Agricultural
- Political Ecology
- Predator/Prey Relations
- Preservation
- Protected Areas
- Reclamation Act
- Recycling
- Redundancy, Ecological
- Resilience, Ecological
- Resource Conservation and Recovery Act
- Restoration Ecology
- Salmon
- Save the Whales Movement
- Sierra Club
- Social Ecology
- Solar Energy
- United Nations Environment Programme
- Urban Ecology
- Urban Parks Movement
- Vertical Ecology
- Water Conservation
- Wind Energy
- World Conservation Union
- Xeriscape
- Yellowstone National Park
- Yosemite National Park
- Countries
- Afghanistan
- Albania
- Algeria
- Angola
- Argentina
- Armenia
- Australia
- Austria
- Azerbaijan
- Bahrain
- Bangladesh
- Belarus
- Belgium
- Belize
- Benin
- Bhutan
- Bolivia
- Bosnia and Herzegovina
- Botswana
- Brazil
- Bulgaria
- Burkina Faso
- Burundi
- Cambodia
- Cameroon
- Canada
- Cape Verde
- Central African Republic
- Chad
- Chile
- China
- Colombia
- Congo
- Congo, Democratic Republic
- Costa Rica
- Croatia
- Cuba
- Cyprus
- Czech Republic
- East Timor
- Ecuador
- Egypt
- El Salvador
- Equatorial Guinea
- Eritrea
- Estonia
- Ethiopia
- European Union
- Finland
- France
- Gabon
- Gambia
- Georgia (Nation)
- Germany
- Ghana
- Greece
- Guam
- Guatemala
- Guinea
- Guinea-Bissau
- Guyana
- Haiti
- Honduras
- Hungary
- Iceland
- India
- Indonesia
- Iran
- Iraq
- Ireland
- Israel
- Italy
- Ivory Coast
- Jamaica
- Japan
- Jordan
- Kazakhstan
- Kenya
- Korea, North
- Korea, South
- Kudzu
- Kuwait
- Kyrgyzstan
- Laos
- Latvia
- Lebanon
- Lesotho
- Liberia
- Libya
- Lithuania
- Macedonia
- Madagascar
- Malawi
- Malaysia
- Maldives
- Mali
- Mauritania
- Mauritius
- Mexico
- Micronesia
- Moldova
- Mongolia
- Morocco
- Mozambique
- Myanmar
- Namibia
- Nauru
- Nepal
- Netherlands
- New Caledonia
- New Zealand
- Nicaragua
- Niger
- Nigeria
- Norway
- Oman
- Pakistan
- Panama
- Papua New Guinea
- Paraguay
- Peru
- Philippines
- Poland
- Portugal
- Puerto Rico
- Qatar
- Romania
- Russia (and Soviet Union)
- Rwanda
- Samoa
- Saudi Arabia
- Senegal
- Serbia and Montenegro
- Sierra Leone
- Singapore
- Slovakia
- Slovenia
- Somalia
- South Africa
- Spain
- Sri Lanka
- Sudan
- Suriname
- Swaziland
- Sweden
- Switzerland
- Syria
- Taiwan
- Tajikistan
- Tanzania
- Thailand
- Togo
- Tunisia
- Turkey
- Turkmenistan
- Uganda
- Ukraine
- United Kingdom
- United States, Alaska
- United States, California
- United States, Central South
- United States, Great Plains
- United States, Gulf Coast South
- United States, Hawaii
- United States, Middle Atlantic
- United States, Midwest
- United States, Mountain West
- United States, Northeast
- United States, Pacific Northwest
- United States, Southeast
- United States, Southwest
- United States, Texas
- Uruguay
- Uzbekistan
- Venezuela
- Vietnam
- Yemen
- Zambia
- Zimbabwe
- Geography
- Amazon River Basin
- Andes Mountains
- Antarctica
- Appalachian Mountains
- Arctic
- Arid Lands
- Atlantic Ocean
- Baikal, Lake
- Basin
- Beaches
- Black Sea
- Boreal Forest
- Cape Verde
- Caribbean Sea
- Caspian Sea
- Chang Jiang (Yangtze) River
- Cities
- Cloud Forests
- Coastal Zone
- Colorado River
- Congo River and Basin
- Coniferous Forest
- Continental Shelf
- Continents
- Coral Reefs
- Croton River Aqueduct
- Danube River
- Deciduous Forest
- Desert
- Dunes
- Erie, Lake
- Everest, Mount
- Floodplains
- Fuji, Mount
- Geography
- Glaciers
- Gobi Desert
- Grand Canyon
- Grasslands
- Hoover Dam
- Huang (Yellow) River
- Indian Ocean
- Kalahari Desert
- Kilimanjaro, Mount
- Klamath Basin
- Lakes
- Latitude
- Locks and Dams
- Longitude
- Los Angeles River
- Mediterranean Sea
- Mekong River
- Mississippi River
- Mountains
- Nile River (and White Nile)
- Oasis
- Ob-Irtysh River
- Oceans
- Owens Valley
- Pacific Ocean
- Persian Gulf
- Prairie
- Rain Forests
- Rhine River and Valley
- Rio Grande
- Rivers
- Rocky Mountains
- Sahara Desert
- Savanna (or Tropical Grassland)
- Steppe
- Tanganyika, Lake
- Thar Desert
- Three Gorges Dam
- Tigris and Euphrates Rivers
- Titicaca, Lake
- Topographic Maps
- Tropical Forests
- Tundra
- Ural Mountains
- Victoria, Lake
- Volga River
- Yucca Mountain
- History
- Exxon Valdez
- Geer vs. Connecticut
- Gibbons vs. Ogden
- Martin vs. Waddell
- Tyler vs. Wilkinson
- Addams, Jane
- Antiquities Act
- Aristotle
- Bhopal Gas Tragedy
- Black Death
- Bookchin, Murray
- Bosnia and Herzegovina
- Bush, George H.W. Administration
- Bush, George W. Administration
- Carter, Jimmy Administration
- Chernobyl Accident
- Clinton, William Administration
- Colonialism
- Communism
- Darwin, Charles
- Dust Bowl, U.S.
- Energy Crisis (1973)
- Enron
- Gore, Al
- Humboldt, Alexander von
- Ice Ages
- Industrial Revolution
- Kennedy, John F. Administration
- Lewis and Clark Expedition
- Locke, John
- Marx, Karl
- Nader, Ralph
- Nixon, Richard Administration
- Postcolonialism
- Progressive Party
- Reagan, Ronald Administration
- Reclamation Act
- Roosevelt, Theodore Administration
- Rousseau, Jean Jacques
- Sinclair, Upton
- Social Darwinism
- Socialism
- Supreme Court Decisions
- Tennessee Valley Authority
- Thatcher, Margaret
- Three Mile Island Accident
- Totalitarianism
- United Nations
- Wars
- Movements and Regulations
- Agenda 21
- Alliance of Small Island States
- Alternative Energy
- Animal Rights
- Antiquities Act
- Basel Convention
- Buffalo Commons
- Cairo Guidelines on Waste Trading (UN)
- Car Corporate Average Fuel Economy Standards
- Carpooling
- Chipko Andolan Movement
- Clean Air Act
- Clean Water Act
- Cloning
- Collective Agriculture
- Command and Control Regulation
- Commerce Clause
- Communism
- Community-Based Conservation
- Comprehensive Environmental Response Compensation and Liability Act
- Conservation
- Convention on Biological Diversity
- Convention on International Trade in Species of Wild Fauna and Flora
- Cradle-to-Grave Regulation of Hazardous Waste
- Cultural Ecology
- Delaney Amendment
- Deregulation
- Dryland Farming
- Earth Day
- Earth First!
- Eastern Wilderness Act
- Ecofeminism
- Ecological Modernization
- Endangered Species Act
- Environmentalism
- Eugenics
- Farmland Conservation
- Federal Insecticide, Fungicide, and Rodenticide Act
- Federal Land Policy and Management Act
- Feng Shui
- Forest Organic Act
- Framework Convention on Climate Change
- General Agreement on Tariffs and Trade
- General Mining Law
- Globalization
- Green Movement
- Green Revolution
- Historical Materialism
- Human Genome Project
- Hybrid Vehicle
- Industrial Revolution
- Intergovernmental Panel on Climate Change
- International Tropical Timber Agreement
- Kyoto Protocol
- Land and Water Conservation Fund Act
- Litigation, Environmental
- Lobbyists
- Modernity
- Montreal Protocol
- Movements, Environmental
- National Forest Management Act
- National Wild and Scenic Rivers Act
- Nature Conservancy
- North American Free Trade Agreement
- Nuisance Law
- One Child Policy, China
- Pastoralism
- Policy, Environmental
- Political Ecology
- Prescribed Burning
- Preservation
- Protected Areas
- Public Land Management
- Reclamation Act
- Recycling
- Reforestation
- Renewable Energy
- Resource Conservation and Recovery Act
- Rural Gentrification
- Safe Drinking Water Act
- Salinization
- Save the Whales
- Sewer Socialism
- Slow Food Movement
- Social Darwinism
- Social Ecology
- Socialism
- Sociobiology
- Sociology
- Space Program
- Sterilization
- Supreme Court Decisions
- Swamp Lands Acts
- Taylor Grazing Act
- Totalitarianism
- Trade, Fair
- Trade, Free
- Transcendentalism
- United Nations Framework Convention on Climate Change
- Urban Ecology
- Urban Parks Movement
- Vegetarianism
- Water Conservation
- Water Law
- Weather Modification
- Wilderness Act of 1964
- Organizations
- Army Corps of Engineers
- Audubon Society
- Bureau of Land Management
- Bureau of Reclamation (U.S.)
- Center for Disease Control
- Club of Rome
- Conservation Reserve Program
- Consultive Group for International Agricultural Research
- Department of Agriculture (U.S.)
- Department of Energy (U.S.)
- Department of the Interior (U.S.)
- Environmental Protection Agency
- Federal Emergency Management Agency
- Fish and Wildlife Service (U.S.)
- Food and Drug Administration
- Forest Service
- General Agreement on Tariffs and Trade
- German Royal Forest Academy
- Greenpeace
- Institutions
- Integrated Pest Management
- Intergovernmental Panel on Climate Change
- International Monetary Fund
- Joint Forest Management
- League of Conservation Voters
- Long Term Ecological Research Network
- Man and the Biosphere Program
- National Geographic Society
- National Marine Fisheries Service
- National Oceanic and Atmospheric Administration
- National Parks Service
- Natural Resource Conservation Service
- Natural Resources Defense Council
- Non-Governmental Organizations
- Nuclear Regulatory Commission
- Organization of Petroleum Exporting Countries
- Progressive Party
- Public-Private Partnerships
- Risk Society
- Save the Whales Campaign
- Sierra Club
- Tennessee Valley Authority
- Think Tanks
- UNESCO
- Union of Concerned Scientists
- United Farm Workers
- United Nations
- United Nations Environment Programme
- United States Geological Survey
- Wilderness Society
- Women's Environment and Development Organization
- World Bank
- World Conservation Union
- World Health Organization
- World Trade Court
- World Trade Organization
- World Wildlife Fund
- Worldwatch Institute
- People
- Abbey, Edward
- Addams, Jane
- Aristotle
- Berry, Wendell
- Blaut, James
- Bookchin, Murray
- Boserup, Ester
- Botkin, Daniel
- Braudel, Fernand
- Brockovich, Erin
- Brower, David
- Bullard, Robert
- Carson, Rachel
- Chavez, Cesar
- Clemens, Frederic
- Commoner, Barry
- Cronon, William
- Darwin, Charles
- Diamond, Jared
- Downing, Andrew Jackson
- Ehrlich, Paul
- Fossey, Dian
- Gibbs, Lois
- Glacken, Clarence
- Goodall, Jane
- Gore, Al
- Guha, Ramachandra
- Hamilton, Alice
- Haraway, Donna
- Hardin, Garrett
- Humboldt, Alexander von
- Huntington, Ellsworth
- Kropotkin, Peter
- Leaky, Louis and Mary
- Leaky, Richard
- Leopold, Aldo
- Linnaeus, Carl
- Locke, John
- Lorenz, Konrad
- Maathai, Wangari
- Malthus, Thomas
- Marsh, George Perkins
- Marx, Karl
- Mendes, Chico
- Merchant, Carolyn
- Muir, John
- Mumford, Lewis
- Nader, Ralph
- Naess, Arne
- Nietschmann, Bernard
- Odum, Eugene
- Olmstead, Frederick Law
- Pasteur, Louis
- Patkar, Medha
- Pinchot, Gifford
- Powell, John Wesley
- Rappaport, Roy
- Reclus, Elisee
- Rousseau, Jean Jacques
- Sachs, Wolfgang
- Sauer, Carl
- Schumacher, E.F.
- Scott, James C.
- Semple, Ellen Churchill
- Sen, Amartya
- Shiva, Vandana
- Simon, Julian
- Sinclair, Upton
- Somerville, Mary
- Thatcher, Margaret
- Thoreau, Henry David
- Udall, Morris
- Watt, James G.
- White, Gilbert
- White, Gilbert (20th century)
- Wittfogel, Karl A.
- Worster, Donald
- Wright, Frank Lloyd
- Politics
- Addams, Jane
- Alliance of Small Island States
- Animal Rights
- Capitalism
- Carter, Jimmy Administration
- Clinton, William Administration
- Cloning
- Colonialism
- Communism
- Consumers, Economic
- Culture
- Decision Science
- Democracy
- Department of Agriculture (U.S.)
- Department of Energy (U.S.)
- Department of the Interior (U.S.)
- Developed (First) World
- Ecofeminism
- Economics
- Ethics
- Evolution
- Feminist Political Ecology
- Framework Convention on Climate Change
- Global Warming
- Globalization
- Gore, Al
- Gross National Product (and GDP)
- Ideology
- Industrialization
- Intergovernmental Panel on Climate Change
- International Monetary Fund
- Kennedy, John F. Administration
- Kyoto Protocol
- League of Conservation Voters
- Litigation, Environmental
- Lobbyists
- Locke, John
- Marsh, George Perkins
- Marx, Karl
- Mass Media
- Montreal Protocol
- Nader, Ralph
- Nixon, Richard Administration
- North American Free Trade Agreement
- Nuclear Weapons
- Organization of Petroleum Exporting Countries
- Palestine
- Postcolonialism
- Pragmatism
- Progressive Party
- Race
- Race-to-the-Bottom Hypothesis
- Reagan, Ronald Administration
- Religion
- Roosevelt, Theodore Administration
- Scarcity
- Second Contradiction of Capitalism
- Sinclair, Upton
- Social Darwinism
- Socialism
- Supreme Court Decisions
- Tennessee Valley Authority
- Thatcher, Margaret
- Think Tanks
- Totalitarianism
- Underdeveloped (“Third”) World
- UNESCO
- United Nations
- United Nations Framework Convention on Climate Change
- War on Drugs
- Watt, James G.
- Weapons of Mass Destruction
- World Trade Organization
- Pollution
- Acid Rain
- Agent Orange
- Alaska Pipeline
- Alternative Energy
- Appropriate Technology
- Arsenic
- Asbestos
- Automobiles
- Basel Convention
- Best Available Technology
- Bhopal Gas Tragedy
- Bikini Atoll
- Brockovich, Erin
- Cairo Guidelines on Waste Trading
- Cancer Alley
- Car Corporate Average Fuel Economy Standards
- Carbon Dioxide
- Carbon Tax
- Carcinogens
- Catalytic Converters
- Chlorinated Hydrocarbons
- Chlorofluorocarbons
- Circle of Poison
- Clean Air Act
- Clean Water Act
- Coal
- Cradle-to-Grave Regulation of Hazardous Waste
- DDT
- Department of Energy
- Deregulation
- Dioxins
- Earth Day
- Economics
- Environmental Protection Agency
- Extinction of Species
- Federal Insecticide, Fungicide, and Rodenticide Act
- Food Irraditation
- Fossil Fuels
- Framework Convention on Climate Change
- Garbage
- Gasoline
- Global Environmental Change
- Global Warming
- Green Chemistry
- Green Consumerism
- Green Movement
- Green Production and Industry
- Green Revolution
- Greenhouse Effect
- Greenhouse Gases
- Groundwater
- Hybrid Vehicle
- Hydrogen Fuel
- Hydropower
- Industrialization
- Inversion, Temperature
- Kyoto Protocol
- Montreal Protocol
- Mutation
- Natural Gas
- Nitrogen Oxides
- Nixon, Richard Administration
- Nonpoint Source Pollution
- Oil Spills
- Ozone and Ozone Depletion
- Paleoclimatology
- Petroleum
- Point Source Pollution
- Pollution, Air
- Pollution, Water
- Polychlorinated Biphenals
- Renewable Energy
- Safe Drinking Water Act
- Salinization
- Uranium
- Urban Parks Movement
- Urbanization
- Wastewater
- Society
- Acquired Immune Deficiency Syndrome
- Agent Orange
- Animal Rights
- Anthropocentrism
- Anthropology
- Audubon Society
- Automobiles
- Bhopal Gas Tragedy
- Bicycle
- Birth Control
- Birth Rate
- Black Death
- Body, Human
- Capitalism
- Carcinogens
- Carpooling
- Central Planning
- Chaos Theory
- Chernobyl Accident
- Cities
- Cloning
- Cocaine
- Coffee
- Common Law
- Common Property Theory
- Communism
- Commuting
- Culture
- Death of Nature
- Death Rate
- Debt
- Democracy
- Democratic Collapse
- Design and Ecodesign
- Developed (First) World
- Diffusionism
- Disasters
- Disease
- Domination of Nature
- Drinking Water
- Drugs
- Economics
- Education
- Efficiency
- Energy
- Environmental Racism
- Epidemic
- Ethics
- Evolution
- Fast Food
- Fire
- Flight
- Food
- Globalization
- Health
- Highways
- Infant Mortality Rate
- Justice
- Landfills
- Lawns
- Life Expectancy
- Malnutrition
- Markets
- Mass Media
- Megalopolis
- Monoculture
- Needs and Wants
- NIMBY
- Obesity
- Peasants
- Pets
- Population
- Poverty
- Quality of Life
- Race
- Recycling
- Religion
- Sewage and Sewer Systems
- Sex
- Sexually Transmitted Diseases
- Smoking
- Social Darwinism
- Social Ecology
- Sociology
- Sport Utility Vehicles
- Suburbs
- Syphilis
- Technology
- Totalitarianism
- Tourism
- Underdeveloped (Third) World
- Urban Growth Control
- Urban Planning
- Urban Sprawl
- Urbanization
- Vaccination
- Vegetarianism
- Viruses
- War on Drugs
- Wars
- Waste Incineration
- Waste, Human
- Waste, Solid
- Water Quality
- Wilderness Society
- Wind Energy
- Wine
- Wise Use Movement
- Workplace Hazards
- World Wildlife Fund
- Zero Population Growth
- Loading...