Environmental Science Websites

Agriculture and soils
Biodiversity
Climate change
Conservation
Deforestation
Ecosystems
Energy efficiency
Energy use and production
Environmental ethics
Environmental worldviews

Evolution
Extinction
Fisheries
Globalization
Habitat loss
Hazardous waste
Health and hazards
Invasive species
Laws, regulation, and treaties
Materials cycling

Nuclear energy
Nutrition
Pollution
Population growth
Poverty
Recycling and 5Rs
Resource use
Sustainable choices
Urbanization
Water resources


Agriculture and soils

Sustainable Table
The Sustainable Table web site offers a helpful explanation of soils and their contents.

Cotton: From Field to Fabric
The cotton industry is promoting its use of sustainable agricultural practices.

Report Supports Sustainable Food Production
This Earth Observatory site outlines the critical issues in food production.

United Nations Convention to Combat Desertification
The U.N. Convention to Combat Desertification is dedicated to halting the spread of deserts and the erosion of fertile soil. At their web site you can read success stories as well as stories of continuing crisis.

The Dust Bowl
An illustrated account of this 1930s environmental disaster. If you're patient, you can download a dust storm movie. There are also links to a photo archive on dust storms and their damage.

United States Salinity Laboratory
An excellent source of information. It includes a FAQ about salinity topics in agriculture.

National Soil Erosion Research Laboratory
The NSERL is the U.S.’s research arm for understanding, controlling, and preventing soil erosion.

Prairie Soil
This Web site from Agriculture and Agri-Food Canada details the soil quality crisis facing North American farmers, causes of the problem, and agricultural techniques for preventing erosion, runoff, and soil degradation.

National Coalition Against the Misuse of Pesticides
Beyond Pesticides offers articles and links about alternatives to pesticide use.

Central Coast Environmental Health Project
Read this page to learn more about reducing your use of pesticides.

Appropriate Technology Transfer for Rural Areas
The ATTRA's National Sustainable Agriculture Information page is a good source for further information on farming techniques.

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Biodiversity

Glacier National Park Biodiversity
Learn more about the biodiversity of Glacier National Park at this NPS web site.

EarthTrends: The Environmental Information Portal
Click on particular biomes or ecosystems to learn more about their locations and the threats to them.

EO Laboratory: Mission, Biomes
This NASA Earth Observatory site includes a lot of useful information about each biome.

National Geographic Ecoregions
At National Geographic's Wild World site, you can explore all of the earth's ecoregions through an interactive map.

Biomes: A Research Guide for Students
This web site includes information and links that will help you learn everything you've always wanted to know about biomes.

Biomes
In-depth treatment of the world's biomes, from a course at the University of Puget Sound.

Sierra Club Critical Ecoregions Program
The Sierra Club has put together a series of regional plans to address specific environmental needs in each biome and area of the United States.

Arctic Wildlife--The Smithsonian Institution
This portfolio includes photos and descriptions of Arctic animals.

Alaska's Cold Desert
This government education web site describes the climate and inhabitants of the tundra biome.

Desert Ecosystems
This Environmental Literacy Council page provides accessible information on desert environments and links to other helpful sites.

Deserts USA
This online magazine includes loads of information about the desert ecosystems of the United States.

World Resources Institute page on grasslands
Learn more about grasslands and other biomes at this World Resources Institute page.

Tundra and Alpine
At this site you’ll find a description of tundra and alpine biomes as well as dozens of links to related sites and organizations.

Sierra Club Rocky Mountains Information
Check out this site for more information on what’s happening to protect the Rockies.

Frogwatch
Learn more about frogs at this web site.

Earth on Edge: Ecosystems
Earth on Edge, a PBS series, provides information about ecosystems and biomes on its web site.

North American Mammals
This rich set of resources on North American mammals comes from the Smithsonian Institute.

Biodiversity Hotspots
According to this National Geographic site, there are now 34 identified biodiversity hotspots.

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Climate change

Global Warming Facts and Our Future
The Koshland Science Museum of the National Academies of Science has a terrific exhibit online on the top of global warming.

Scientific Facts on Climate Change and Global Warming
This Greenfacts.org web site explains the science and impact of the greenhouse effect.

A Closer Look at Global Warming
This National Academies of Science site examines the phenomenon of global warming.

Global Warming Frequently Asked Questions
This page from NOAA provides answers to fundamental questions about global warming.

Rainforest Action Network Fact Sheet
This RAN site describes the impact of global warming on tropical forests.

Climate Change Campaign
An extensive report on the World Wildlife Fund site.

Global Warming and Energy
This Greenpeace site describes how we can reduce global warming by reducing our use of energy.

Union of Concerned Scientists
The UCUSA web site offers an argument for addressing the growing threat of global warming, as well as resources for learning more about it.

Department of Energy Carbon Sequestration
Find out how the U.S. government is working with industry to study carbon sequestration.

Global Warming Information Page
Visit this site for basic information about global warming as well as for up-to-date information about the treaties designed to control the levels of greenhouse gases.

Greenpeace: Stop Climate Change
Read about the problem and the solutions to climate change at the Greenpeace site.

IEEE web site on the ozone hole
If you are interested in the technology behind studying the ozone hole, you will enjoy visiting this web site of the IEEE Virtual Museum.

The Science of Ozone Depletion
This Web site from the EPA includes excellent resources on health and environmental impacts of ozone depletion.

Global Warming 101
The Union of Concerned Scientists offers an extensive web site on climate change.

Carbon Sequestration
A new study reports that storing excess carbon in ocean sediments is possible and practical.

ABC News and Discovery Channel
There are lots of good resources on the Discovery Channel's page.

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Conservation

BioGems
BioGems is a project of the National Resources Defense Council, and aims to protect 12 exceptional areas from harm.

National Parks Conservation Association
Learn about the American alligator and many other important species at this organization's web site.

Conservation International: Biodiversity Hotspots
Explore the biodiversity hotspots on Earth by region, compare them according to various factors, and learn what is being done to protect them.

Nature Conservancy
The Calakmul area of Mexico is rich in biodiversity and must be preserved.

Conservation Ecology
A peer-reviewed electronic journal published by the Ecological Society of America. It is an excellent place to find articles about ongoing research in conservation biology.

World Conservation Monitoring Centre
This British site provides, among other things, information services on conservation. Check out their conservation databases for information about threats to biodiversity.

Conservation Easements
Conservation easements permanently conserve private lands. Find out how they work.

Chile's Valdivian Coastal Range
The Nature Conservancy offers this tour of a new nature reserve.

The Careful Foot
Website devoted to Reconciliation Ecology from Evolutionary Ecology, Ltd.

Earth Island Institute
Find out how you can get involved, or just get informed, at this authoritative web site.

Environmental Defense
Find out how organizations like Environmental Defense work with landowners to conserve habitat.

Marine Conservation
Conservation marine habitats are crucial to the survival of marine organisms.

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Deforestation

Center for International Forestry Research
This organization works to educate citizens and protect forest resources.

Status and Trends of the Nation's Biological Resources
At this US Geological Survey site you can find a lot of information about how land is (and has been) used in the United States.

Rainforest Action Network Information Center
A beautiful site with loads of information, including news, explanations of why rainforests are important, and a discussion of the role of ecotourism in preserving them.

World on Fire
Learn about the role of fire in forest ecology.

Forest Certification Resource Center
This organization provides information on certified timber products.

Boreal Forests
BorealForest.org includes information about how boreal forests are managed as well as scientific innovations in forest management.

Forest Trends
This organization promotes sustainable management of tropical forests through economic means.

Rainforest Species Extinction
Read this report from the Rainforest Action Network on species extinction in tropical forests.

Deforestation Reference Information
These valuable reference pages come from the Earth Observatory.

Climate Change a Threat to Amazon Rainforests
This article describes scientific evidence that climate change could turn the rainforest into savannah.

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Ecosystems

World Wildlife Fund's Living Planet Report
View a graph comparing the Earth's carrying capacity vs. humanity's ecological footprint at this WWF site.

Ecological Society of America
Home page of an organization of scientists with an interest in ecology. From this page you can access news, press releases, and ecological success stories.

Brooklyn Botanic Garden
This BBG page explains the role of insects in our gardens and ecosystems.

State of the Nation's Ecosystems
This Heinz Center report describes the value of native species and threats to them.

Ecology Center
The Ecology Center web site has lots of information about the "materials loop" and plastic recycling. Can we really close the loop on consumption?

Smithsonian Migratory Bird Research Center
At this site, you can click on various projects to learn more about how field scientists and researchers gather and use data.

Ecological Niche
A simple explanation of the current concept of an ecological niche.

Plant Community Ecology
This web site from the Brooklyn Botanic Garden explains plant community ecology basics.

The Predator Project
This Montana organization works to protect predator species such as the grizzly bear, wolf, and mountain lion. Click here to find out more about the role of predators in maintaining biodiversity.

Environmental Tipping Points
The Environmental Tipping Point project advocates viewing environmental problems through the lens of the environmental tipping points paradigm.

Ecosystem Mapping
Learn how and why ecologists map ecosystems.

Soil Biological Communities
This web site from the Bureau of Land Management describes the tiny but vital world of soil ecosystems.

Predator Defense
Learn about wolves, their role in the food web, and threats to them at the Predator Defense web site.

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Energy efficiency

Green Home
Green Home provides information and support for sustainable construction projects.

Energy Efficiency and Renewable Energy Network (EREN)
You can search this Department of Energy site for information and pose questions to an energy expert.

The Home Energy Saver
An interactive site developed at the Lawrence Berkeley National Lab. It shows you how you can save money by making your home more energy-efficient.

Efficient Appliances Save Energy and Money
A page from the National Resources Defense Council site. It describes the effects of the National Appliance Energy Conservation Act (NAECA) and its subsequent revisions.

U.S. EPA Energy Star Program
Home page of a program to promote energy efficient products using the ENERGY STAR label. Visit to learn what products have earned the right to the label.

EREN-Solar Energy
An extensive list of links to U.S. government information about solar energy.

Hydroelectric Power Generation
Information about the Grand Coulee Dam--the largest producer of hydroelectric power in the United States. It explains, in some detail, how the dam is used to generate electricity.

American Rivers
Homepage of a non-profit organization dedicated to protecting and restoring America's rivers. There is a special section devoted to the negative environmental impacts of dams.

American Wind Energy Association
This organization represents the American producers of wind energy. Their site includes a Wind Energy FAQ and the archives of Wind Energy Weekly.

Fuel Cells
This web site is the right source for information about fuel cell technology.

EREN-Geothermal Energy
Information about geothermal energy from the U.S. Department of Energy.

EREN-Biomass
Information about biomass from the U.S. Department of Energy.

History of Solar Power
At this web site, you can click on topics to learn about how solar power has been used from ancient times to the present.

Clean Energy
The Union of Concerned Scientists has information on all types of alternative energy on its web site.

National Wind Technology Center
Learn about how wind turbines work and whether they're a good idea for your part of the world.

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Energy use and production

The End of Cheap Oil
This National Geographic Online story discusses the dwindling supply of petroleum.

Peak Oil
Visit Peak Oil to read a Wall Street Journal article by two noted experts on oil supplies.

OPEC
Learn more about OPEC and its role in world trade and security at this OPEC site.

Natural Gas site
This Department of Energy page gives lots of background on natural gas formation, use, and supplies.

American Gas Association
This industry site sponsored by the American Gas Association describes the supply and demand situation with natural gas. Here you can also learn everything you ever wanted to know about natural gas.

American Petroleum Institute
This organization represents the American oil and gas industries. The site includes a FAQ on petroleum, consumer information, news, and a section addressing environmental concerns.

Coal Information
A University of Kentucky page with information about how coal is formed, mined, and used. At the end of the page are links to sources of additional information.

Ethanol
The Union of Concerned Scientists web site provides some information about ethanol as a substitute for gasoline.

FedStats
Among other topics, you can find statistics on energy use, production, and reserves at Fedstats.

BP Energy Use Summary
Find out what the energy picture was like for 2005 and what one of the world's biggest energy companies projects for the future.

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Environmental ethics

Environmental Sustainability Index
The 2005 ESI report ranks countries based on 21 factors, including population density and natural resources.

Soccer Goes Green
This Scientific American article profiles efforts to offset the pollution generated by the World Cup.

The Earth Charter
Read the Earth Charter and learn more about its goals.

Institute for International Cooperation and Development
This Massachusetts-based organization is a good place to learn about how you can get involved in environmental and social causes.

What Is Sustainable Development?
This web page offers quotes and perspectives on what makes something "sustainable."

Novartis Foundation for Sustainable Development
The multinational corporation Novartis expresses its environmental ethics on its web site.

Ray Anderson—environmental case study
This web page from Online Ethics profiles Ray Anderson, who applied his principles to making the carpet industry sustainable.

Rachel Carson
Rachel Carson was one of the first environmental ethicists.

Four environmental case studies
This set of four fictional case studies allows you to explore what you would do if you were faced with an environmental engineering ethical dilemma.

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Environmental worldviews

Resurgence Magazine
This magazine focuses on spiritual and ecological thinking. Its articles are available online in its archives, by topic.

EarthLight Magazine
EarthLight Magazine offers articles that blend environmentalism and spirituality.

Eco-Feminism
This philosophy research center has information about various ecofeminists.

One World
This Web site provides a useful search engine that allows you to find articles and documents on environmental topics around the world.

New American Dream
Learn how to buy wisely, green your dorm room, and other ways to live sustainably at the New American Dream web site.

ENDS Europe Daily
On many fronts, Europe is ahead of the U.S. on environmental issues. Learn what the Europeans are thinking, saying, and doing, about the environment.

Common Vision
Common Vision focuses on service learning and outreach by touring permacultures, organic farms, urban gardens, and more in a biodiesel powered mobile resource center.

The Green Fuse
At this site, you can learn about the many environmental philosophies and worldviews.

U.S. Youth Network for Sustainable Development
This youth organization works on sustainability causes and has regular conferences of like-minded young people.

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Evolution

A Modern Mass Extinction?
This PBS roundtable discussion with leaders in the field of evolution addresses the topic of mass extinction.

Global Amphibian Assessment
This conservation organization is working to catalogue the status of the world's amphibians. At their web site you can learn about habitats and threats.

Animal species
At this site, you can look up information on endangered animals by name and learn how many still exist, what the threats are to the species, and what their reproductive patterns are.

CITES home page
Learn all about CITES and its various projects at the organization's home page.

Endangered Species Recovery Program
This public/private partnership endeavors to recover endangered species and resolve conservation conflicts through scientific consultation.

PBS Evolution Series
This web site allows you to view the entire series from PBS on evolution and find background resources.

NASA—Evolvable Systems
NASA scientists apply the theory of evolution to designing software.

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Extinction

Endangered Species Science
The National Zoo in Washington, D.C. has a great site about endangered species science, including information about particular species.

The Sixth Great Extinction
This report from the Center for Media and Democracy describes the current era as a sixth great extinction.

Species Extinction Rate Speeding Up
This report from Minnesota Public Radio includes an interview with a noted biologist.

Mass Extinction
PBS organized a panel of experts to discuss the problem of species extinction. Learn what they had to say.

Pesticides and Extinction
Find out how pesticides can destroy a species at the EPA web site.

Study: Bird Species Facing Dire Extinction Rates
This Discovery Channel story reports on the rapid decline in bird species.

Biodiversity: The Sixth Great Wave
How is human population growth causing a sixth wave of extinction?

Scientists Call for Urgent Action over Extinction Rates
This Australian news report interviewed Norman Myers and other prominent environmental scientists.

IUCN Red List
View the IUCN red list of endangered species.

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Fisheries

The Estuarine Food Web
Information about Galveston Bay from Rice University.

The Cousteau Society
TCS is dedicated to the protection of the world’s oceans, including its coral reefs and whales. Click here to find out more about the society’s mission and research.

Salmon and the Northwest
This article appeared in Open Spaces Magazine.

NOAA Fisheries page
NOAA is responsible for researching how best to protect our nation's fisheries. Find out more about fisheries at their web site.

Amazon Rivers Project
Amazon Rivers Project aims to protect aquatic biodiversity in the Amazon and help local people learn how to live sustainably.

Great Salt Lake Superior?
Read about the studies being done on water levels in the Great Lakes, and the effect of lower water levels on salinity.

What You Need to Know about Mercury in Fish and Shellfish
FAQs and advice from the US EPA and FDA.

Statewide Mercury Hair Biomonitoring Program—Alaska
A description of the Alaska program

NYC Professor Promotes Urban Fish Farm
Will urban aquaculture take off?

Economy of Scales
Read more about fish farming at Stanford University's online magazine.

Marine Bioinvaders
Information about marine and freshwater bioinvaders, geographic distributions of exotic marine species, related research activities, fact sheets and regulations and policies on introduced species.

Algal Succession
Read here to learn about seasonal succession of algae in lakes.

Monterey Bay Aquarium: Sharks
Get an update on the great white shark on exhibit at this famed aquarium and learn about how sharks are endangered.

Sustainable Ecosystems Institute
This group of scientists and ecologists works to sustain marine and freshwater ecosystems, including reefs and rivers.

Marine Protected Areas
Marine protected areas are one approach to preserving aquatic diversity.

Coastal Ecosystems
This USGS site describes the many assaults on coastal ecosystems.

World Council of Whalers
The World Council of Whalers provides information on their web site about the importance of whaling.

Whale Science
The transcript of this ABC News story discusses the science behind whaling.

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Globalization

Macroeconomics and Growth
This World Bank page discusses economic growth, poverty reduction, and disparities around the world.

Too Many Rich People
An article by Paul Ehrlich that explores the relative burdens that the rich and poor place on the planet. Read this for a good explanation of human carrying capacity. This speech was given at the 1994 International Conference on Population and Development and was reprinted in Brain Food.

The IMF and the Environment
The International Monetary Fund posted this article about the links between poverty, economic growth, and the environment.

Green Tax Shift
This Banneker Center page describes green taxes and explores whether they can successfully reduce damage to the environment.

Global Issues
This web site has articles and links to every possible global economic and humanitarian issue.

Environmental taxes
How can we set up a tax structure that will encourage responsible environmental behavior?

Losers of Globalization
This article, reprinted from Der Spiegel, examines the winners and losers in globalization.

The Globalisation Institute
This organization believes that globalization is a force for the good of all people.

Globalization.101
Globalization101.org is dedicated to providing students with information and interdisciplinary learning opportunities on this complex phenomenon.

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Habitat loss

The Works of Charles Darwin
Voyage of the Beagle and The Origin of Species.

Triumph of Life
This PBS web site includes an evolutionary timeline as well as a lot of user-friendly material on evolution and genetics.

Hawai'i Coral Reef Network
The Hawai'i Coral Reef Network provides a lot of information about the ecosystems and species of coral reefs.

Jane Goodall Institute
The web site for the Jane Goodall Institute provides information about habitat loss, specifically as it affects great apes.

Birds
The Natural History Museum of Los Angeles has a useful page on bird extinction and habitat loss.

Disease, habitat loss and climate change threatens amphibians
One-third of amphibian species are at risk.

Botanic Gardens Conservation International
This organization protects plants threatened by habitat loss and degradation.

Great Lakes Information Network
This organization is dedicated to protecting the Great Lakes. Visit this site for more information about the region's biology and geography.

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Hazardous waste

Toxic technology: Computers Pollute Our Groundwater
Learn about how computers contribute to the water pollution problem in this article from Sacramento News & Reviews.

Waste Prevention
Homepage of the EPA's efforts to reduce solid waste. You can download a variety of documents in Adobe Acrobat format from this page.

Biomimicry
Read here about using nature's best ideas in human endeavors. This site includes case studies and a list of natural materials that could replace manmade substances.

Friends of the Earth - Waste Information Resources
This site provides numerous fact sheets about hazardous waste and the methods used to dispose of it.

Superfund Homepage
This EPA page provides access to tons of information about the program and current and past sites.

Brownfields Information Page
From the EPA, more information on brownfields cleanup.

National Atlas: Superfund Sites
Find out how Superfund sites have been turned into productive land.

Dioxin Facts
Learn more about dioxin.

HUD Office of Healthy Homes and Lead Hazard Control
In addition to a lot of technical papers, this HUD site offers information for homeowners and communities.

Global Lead Network
Global Lead Network offers resources and support for those working against lead poisoning and pollution around the world.

Greenpeace Toxics Map
Read more about the POPs treaty and the "dirty dozen" at this Greenpeace web site.

Bacteria and Metals
A new study claims that a certain bacterium may be able to reduce heavy metal pollution.

Garbage: How Can My Community Waste Less?
This Annenberg/CPB web site is a resource for how to produce less waste.

Alternatives to Chemicals
This brief list offers some ideas for how you can replace chemical cleaners and other products with nontoxic alternatives.

ToxFAQ
Search this web site by chemical to learn all about its hazards and effects.

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Health and hazards

National Cancer Institute
All the links between tobacco use and cancer are available here.

Facts about Tobacco
Get the facts about tobacco use and health.

National Institute of Environmental Health Sciences
The mission of the National Institute of Environmental Health Sciences (NIEHS) is to reduce illness and death from environmental factors, individual susceptibility, and age. This Web site provides information on their programs as well as further information on risks to human health.

The Impact of Malaria
Read this Centers for Disease Control page on malaria's worldwide impact.

The Most Dangerous Woman in America
Typhoid spread rapidly in the early 1900s, and one person thought to be a carrier was quarantined for life.

Centers for Disease Control and Prevention
The Centers for Disease Control is the U.S. government agency that is charged with preventing and controlling disease. It's another good source of news about SARS, West Nile Virus, and other diseases.

National Toxicology Program
Visit this site to learn about government toxicology studies and how regulatory agencies use toxicology data. The Chemical Health and Safety link takes you to a searchable database of chemicals.

Global Strategies for HIV Prevention
This organization's mission is to help produce the first HIV-free generation of people around the world.

National Center for HIV, STD, and TB Prevention
Read here about the best ways to avoid catching one of these diseases and about federal efforts to reduce their incidence.

National Center for Environmental Health
The National Center for Environmental Health investigates the connections between human health and the environment. Here you will find resources on allergens, toxic chemicals, and more.

EPA Chemicals Fact Sheets
This site lists the most common toxic chemicals with links to fact sheets about each one. Find out what you may be exposed to and the effect it is having on your body.

New Approach to Malaria Prevention
Genetically altering bacteria could reduce malaria transmission, according to this National Academy of Sciences report.

HIV Treatment
According to this report, there may be new therapies for those with HIV.

Gates Foundation
Learn what the Bill and Melinda Gates Foundation is doing about HIV and other infectious diseases.

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Invasive species

Elkhorn Slough
Learn about the nonnative species invading this Central California wetland.

Invasive Species
This directory lists the most invasive plant species in the U.S.

At-Risk Native Species
This Heinz Center report describes the value of native species and threats to them.

Invasive Marine Species
Many marine species are threatened by invasive species. In fact, it is the second most cause of aquatic species extinction.

Invasive Species Basics
Who are they and where do they come from? Learn about invasive species at this UCS site.

Strange Days on Planet Earth
This recent PBS series explored invasive species as well as other environmental issues.

Nonnative Species
You can click on the images of invasive species you want to learn more about at this US Geological Survey site.

National Invasive Species Information Center
Learn about the threats posed by invasive species, from the mitten crab to the Asian long-horned beetle.

Invasive.org
Invasive.org shares information with interested parties about invasive and exotic species.

NOAA program to educate about invasive species
Learn how NOAA is working with educators to teach people how to be responsible with non-native species.

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Laws, regulation, and treaties

Resources for the Future
Resources for the Future is an independent group of researchers who provide information in an unbiased way to policymakers. Visit their site for sound analysis of many environmental issues.

Legislative Watch
This Natural Resources Defense Council site updates visitors on what our government is doing about the environment.

Citizens Against Government Waste
The Citizens Against Government Waste take a more conservative approach to environmental laws and regulations. Find out what they support at their web site.

History of the Clean Air Act
Find out about the Clean Air act in this summary.

New Ideas in Pollution Regulation
This World Bank site is for researchers, government officials, and citizens interested in the control of industrial pollution, especially in developing countries.

World Trade Organization
Click here to find out more about the WTO’s perspective on environmental issues.

Endangered Species Act under Fire
Many groups are trying to change the ESA to satisfy their own agendas.

The Endangered Species Act: Thirty Years on the Ark
This Open Spaces article describes how the ESA has been applied since it was first passed.

Convention on Biological Diversity
Visit this organization's web site to find out more about the treaty to protect biodiversity.

Flora and Fauna Biodiversity Conventions
This Tufts University web site provides links to information about any biodiversity treaty or law you may want to explore.

U.S. Endangered Species Act
The Environmental literacy Council web site will give you the history of the Endangered Species Act, as well as a link to the full text of the act.

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Materials cycling

Scientific Method
This web site describes how science was done prior to the development of the scientific method. It includes some fascinating missteps in scientific thinking.

The Ingredients for Life
The BBC provides the recipe for life.

Systems Theory
An explanation of systems theory from Principia Cybernetica Web.

Global Nitrogen: Cycling out of Control
According to this Environmental Health Perspectives report, humans have made significant changes to the nitrogen cycle.

Figures Summarizing the Global Cycles of Biologically Active Elements
Diagrams that show the carbon, oxygen, nitrogen, phosphorus, sulfur (pre-industrial and industrial), silica, water, and methane cycles.

Environment Ecosystems
Diagrams and information about the nitrogen, phosphorus, and carbon dioxide cycles are provided as an educational resource by the Marine Institute in Newfoundland, Canada.

Water and Nutrient Cycles
Learn how to restore the natural nutrient cycles in your garden.

Nitrogen Cycle
NASA's site has a good explanation, diagram, and links to more information about nitrogen, soil, and air.

Phosphorous Cycle
Learn more about the phosphorous cycle at the Environmental Literacy Council web site.

Nutrient Cycles
The ATTRA web site has information on all of the nutrient cycles.

The Microbial World
Do you want to know more about how plants and bacteria fix nitrogen and carry out the cycling of this important nutrient?

Carbon Cycle
A scientist at Woods Hole Oceanographic Institute describes how the carbon cycle works.

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Nuclear energy

The Nuclear Energy Institute
This nuclear industry site describes the benefits of nuclear power.

Nuclear Regulatory Commission
The NRC is a first stop for learning about nuclear energy, security, and waste disposal.

National Geographic Nuclear Feature
This special feature from National Geographic offers a history of nuclear power, science background, and links.

Three Mile Island
Want to learn more about the nuclear accident at Three Mile Island? You can find out more in this case study.

How Nuclear Power Works
The How Stuff Works web site gives you a full tour of nuclear power.

World Nuclear Association
This organization wants nuclear energy to be a part of everyone's future.

Is Nuclear Power the Answer?
This BBC article asks the question of whether nuclear power is the answer to Britain's energy needs.

General Electric
GE's nuclear page describes how modern reactors work and links you to news on the topic of nuclear power.

Going Nuclear: A Green Makes the Case
One of Greenpeace's founders talks about the evolution of his views on nuclear power.

Hot Temps Chill Nuclear Power's Appeal
When the going gets hot, nuclear reactors have to be shut down.

Stronger Future for Nuclear Power
Physics Today examines the role nuclear power may play in our energy future.

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Nutrition

State of the World's Children 2002
This UNICEF report summarizes the incidents of malnutrition around the world.

PermaCulture
Learn about permaculture, an environmentally sustainable approach to agriculture.

Technology to Feed the World
The National Academy of Science has issued this report on genetic engineering of food crops.

Issues and Actions: Seafood
The Whole Foods grocery chain web site describes sustainable fisheries practices and how they benefit us all.

Consumer’s Union
This consumer advocacy organization fights for safer food. Click on this Web site to find out what CU has to say about bovine growth hormone, food contamination, and mad cow disease.

Organic Consumers Association
The OCA promotes organic farming.

Genetic Engineering
Start at this page and then follow the links that interest you to find out more about GMOs.

Bread for the World
At this site you will find statistics on hunger, HIV, and poverty.

Countryside and Small Stock Journal
This magazine, which you can read online, is dedicated to voluntary simplicity in agriculture and rural living.

History of the Green Revolution
Find out how the Green Revolution started and how it changed the way we farm.

Malnutrition
People of all ages all over the world can become malnourished, although in the U.S. foods are fortified and nutrition is more certain.

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Pollution

Wood Smoke and Your Health
Fireplaces are lovely, but the smoke they generate contains particulate matter that damages lungs. Read more about it.

Air Pollution
An overview of the various types of air pollution.

State of the Air 2006
Find out which of America's cities and communities are most polluted and how it is affecting the health of those citizens.

Air Info Now: What Is Ozone?
What exactly is ozone and why is it a pollutant? Find out what effect ozone has on your body.

Acid Rain FAQ
Find out more about acid rain from the Environment Canada web page.

Acid Rain Program
This is the home page for this U.S. EPA program. It has quite a bit of information about the effects of sulfur dioxide emissions on ecosystems.

David Suzuki Foundation
The David Suzuki Foundation is working to promote carbon neutral energy use.

Indoor Air Pollution
This site discusses allergies and indoor air pollution, with useful links to other resources.

Protect Against Farm Runoff
An editorial on the environmental threats of farm runoff.

Friends of the Everglades
A website that summarizes efforts to protect the Florida Everglades.

Teens and Asthma
Learn more about asthma and how it affects young people at this American Lung Association site.

Asthma and Air Pollution
This site, run by the National Asthma Association of Australia, describes the various air pollutants and their effects on people with asthma.

Deadly Smog
Learn about the dangers of smog at this PBS site.

Toxic Air Pollution
Many particles in the air we breathe are toxic.

California Nonpoint Source Pollution Control Problem
Information and resources on nonpoint pollution from the State of California.

EPA Search Your Community
EPA has a web site that allows you to search by zip code to learn more about pollution issues and water quality in your area.

Environmental Literacy Council
The Environmental Literacy Council web site has good information on water pollution issues.

National Resources Defense Council Clean Water and Oceans
Information on drinking water, water pollution, and responsible use.

Atlas of America’s Polluted Waters
Check out this site for data on water pollution from the EPA Office of Water. It covers rivers, coastlines, streams, estuaries, and lakes. Some documents are large Adobe Acrobat files, but most are readily accessible.

Arsenic in Drinking Water
This World Health Organization web page describes the problem of water pollution from arsenic.

Nonpoint Source Pollution
NOAA has an indepth set of resources on nonpoint source pollution.

National Groundwater Assistance Plan
The EPA site on groundwater and agriculture runoff is a good place to start investigating this problem.

Boating Basics
Boat owners have to follow certain rules against water pollution.

Water Pollution in the Great Lakes
Dilution is not the solution, regulation is.

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Population growth

Population Connection
Population Connection describes itself as the nation's largest organization concerned with the impact of rapid population growth and wasteful consumption. The site contains news, population statistics, a FAQ regarding human population growth, and a quiz.

United Nations Population Information Network
Find out the populations of countries, cities, refugee camps, and more at this United Nations site.

Population Coalition
This organization's web site features a population clock as well as a productive land clock. You can watch the numbers on one go up as the other goes down. Also included are featured articles and useful links.

US Census Bureau
Figures from the 2000 Census are available now on a variety of subjects, and more will be released through 2002. Use the American FactFinder function to create various maps and sort data.

U.S. Population Clock
Want to monitor the growth in U.S. and world population? You can, with the help of the U.S. Census Bureau Population Clock.

Rand Study: Family Planning
While Americans support family planning in their own country, they are less enthusiastic about supporting the funding of it by the U.S. overseas.

Population Pyramid Summary
You can obtain population pyramids (age structure diagrams) for any country on this site.

The United States Population in International Context
Five countries, one of them being the U.S., contribute nearly half of population growth to the planet. Find out more.

World in the Balance
What is happening to world population? Find out at this Nova site.

Worldwatch Institute: Population
This press release describes the problems of rising world population and provides useful statistics as well.

Cultural Carrying Capacity
An essay by Garrett Hardin that explains the biological meaning of carrying capacity, what happens when it is exceeded, and how the concept can be related to human populations.

Environment and Health in India
This report discusses the impacts of India's growing human population on its environment.

Demographic Shift
In this interview, a senior Social Security Administration official discusses the impact of the aging population.

Hispanic Population Increase
Check out the main story and the related links to learn more about the rise in the American-born Hispanic population.

China's Growing Population of Older Citizens
What will be the impact of a growing population of elderly in China?

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Poverty

Poverty Law Center
The Poverty Law Center provides resources and articles on the issues surrounding poverty and social justice.

Commanding Heights: Globalization and Poverty
This PBS forum brought experts together to discuss poverty and globalization.

Trade and Poverty
The Economist explores whether free trade helps defeat poverty.

Rich World, Poor Women
This PBS site examines globalization's impact on women.

Reduce poverty - get a safer world
This article from the Christian Science Monitor makes the link between poverty and security.

Reducing Poverty by Integrating Population, Health, and Environment
This article on integrated development appeared on the Population Reference Bureau web site.

Environmental Income Can Help Reduce Poverty
Linking aid to environmental stewardship could help alleviate poverty.

Ignorance shrouds capitalism's profound impact on reducing poverty
The writer argues that most people do not understand the economics behind helping people overcome poverty.

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Recycling and 5Rs

Fedex Kinkos
Find out how this large corporation is working to be a good environmental citizen.

EPA Office of Solid Waste
Go to this Web site for background and resources on industrial and special waste, municipal solid waste, and hazardous waste. You can also link to the Superfund site through this page.

Journal of Solid Waste Technology and Management
This peer-reviewed journal covers everything associated with waste, recycling, and waste-related technologies.

Reduce, Reuse, Recycle
Check out these EPA tips for reducing, reusing, and recycling.

Waste to Wealth
The Institute for Local Self-Reliance promotes recycling and reuse. Learn more about sustainable waste management by clicking on its information links.

Bureau of International Recycling
This site includes information about the recycling of paper, rubber, and tires, as well as non-ferrous metals.

Scientists use plastic to make steel
Scientists in Australia have found a way to use plastic bags and other plastic waste in the steelmaking process, reducing the amount of coal required and recycling waste.

The Green Home Guide
Learn about making better choices that reduce waste at home.

Electronics Recycling
From demanufacturing to remanufacturing, there are many approaches to keeping electronics out of the landfill.

Re-cycle
Re-cycle collects old bikes and sends them to African countries where people can repair them and use them for basic transportation.

Degradable Plastics
Wouldn't it be great if plastics just degraded in sunshine?

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Resource use

Antarctic Treaty
Information about the treaty that will prevent mining in Antarctica for 50 years.

Cyanide in Mining
The Midwest Treaty Network is working to control or eliminate the use of cyanide in mining.

National Mining Association
Read the National Mining Association's Sustainable Development page to find out what the organization's policies are.

Bureau of Land Management
Find out what the Bureau of Land Management has to say about mineral resources.

Martha Mine
The web site for this New Zealand mining company describes how minerals are used and mined.

Mineral Information Institute
Learn about land reclamation, the process of rebuilding land after the mining is finished.

Coal Mine Waste
New research suggests that we should just put the coal waste back into the mine when the miners are finished.

National Park Service Mining Page
Find out who can do what in your nation's federal lands.

Arizona Mining Association
This introduction to mining was prepared by a mining association.

Mining and Metallurgical Society
Find out what the mining industry has to say about the importance of its product and how it handles waste.

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Sustainability

National Library for the Environment
The NLE is a single point of entry for articles, links, and references on environmental topics.

Union of Concerned Scientists
This organization of scientists speaks up against practices that they consider dangerous to the planet and its inhabitants. UCS’s current focuses are biotechnology, antibiotic resistance, and sustainable agriculture.

Science, Sustainability, and the Human Prospect
This address by Peter Raven, President of the AAAS, covers the major environmental problems facing the world.

National Resources Defense Council
From here you can access information about the issues NRDC tackles, as well as related sites filled with environmental information and opinions.

Tragedy of the Commons
Garrett Hardin's classic 1968 essay.

Center for the New American Dream
This organization promotes more fun with less stuff.

The Simple Living Network
Look here for ideas on simplifying your life.

Native Americans and the Environment
This web page is sponsored by a nonprofit group whose goals are to educate the public on environmental problems in Native American communities.

EarthTrends: The Environmental Information Portal
This site, managed by the World Resources Institute, provides information and links for critical environmental topics. A useful resource for further study, the site offers searchable databases, country profiles, maps, and features for ten topics, including population, climate, biodiversity, and policy.

Ideal Bite
This hip web site helps people make sustainable choices without giving up modern conveniences.

Treehugger.com
From job listings to how to plan a green wedding, you will find it here.

Earth Day Network
This web site will bring you up to date on Earth Day as well as other initiatives you can get involved in.

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Urbanization

Sierra Club Sprawl Page
The Sierra Club has an extensive set of resources on urban sprawl.

David Suzuki Foundation
Urban sprawl and climate change are linked. Find out how at this helpful web site.

Green Affordable Housing Coalition
This organization provides information on building sustainable, affordable dwellings.

Green Builder
Learn how to build green, save resources, and live more lightly on the planet.

The Fuel Economy Site
Visit this site, operated by the Environmental Protection Agency, to compare and contrast various types of alternative fuel vehicles.

One-person Households
Science Daily calls one-person households "an environmental time bomb."

One World South Asia
At this web site, click on poverty and hunger to learn more about urban poverty in South Asia.

National Geographic--Urban Sprawl
This issue of National Geographic is devoted to the problem of urban sprawl.

Sprawl Overview
Read the Sierra Club's informative set of resources on smart growth versus sprawl.

About Smart Growth
This US EPA webpage discusses the major principles of Smart Growth.

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Water resources

EPA Office of Water
The EPA Office of Water provides resources on ground water, water science, and water resource conservation.

Hoover Dam
The official Hoover Dam web site provides the visitor with all sorts of information about the dam's past and present.

The Groundwater Foundation
This foundation educates and provides information on protecting groundwater resources.

Access to Safe Water
This World Bank site describes water’s function in the human body and discusses safe water shortages around the world.

Water Resources of the United States
A USGS site with descriptions of USGS activities, real-time hydrologic data ("from the stream to your screen"), online informational brochures, and lots of links.

The Problem of Fresh Water
Part of a sustainability site by John McCarthy, professor of computer science at Stanford University. Includes quotes from and links to a lot of other sources.

A Changing Columbia Basin
An historical perspective on the current and future status of salmon and steelhead in the Columbia Basin. Maps and graphs illustrate how humans have altered the river and how these changes have affected salmon survival.

American Rivers
Homepage of a non-profit organization dedicated to protecting and restoring America's rivers. There is a special section devoted to dams and their environmental impacts.

California Department of Water Resources
News and information about California's amazingly complex water delivery system.

Now with Bill Moyers: Water
Find out about water shortages as well as how much water Americans waste at this PBS site.

Floods
Information about floods from the U.S. Geological Survey.

Historic Colorado River Reconstruction
A new study has recreated the drought patterns of the Colorado River for the last few centuries.

Water Resources of the Middle East
More precious than oil is water to the people who live in the Middle East.

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