Cite

Earth & Environment

Environment covers air pollutants, global warming, the greenhouse effect, and other dangers to the planet. It also includes a glossary of environmental terms as well as a brief directory of environmental organizations. Energy details world and U.S. energy consumption, renewable energy, the world's largest oil and gas reserves, and nuclear power. Nature discusses the Earth's wide variety of animals and plants and its endangered species.

An Extraordinary Approach

Fuel Cell FAQs

The Greenhouse Gas Effect

Global Warming

The National Park System

Electric Cars Powered By Gasoline?

Rethinking Old Technology

Energy Websites

Major Biomes of the World

Coniferous Forest

Deciduous Forest

Desert

Grasslands

Mountains

Rainforests

Arctic Tundra

Fukushima Daiichi Nuclear Power Station

User's Guide to Environmental Language

Environmental Organizations

Oil in the Caspian Region

All About Ozone

I. The Ozone Layer

II. Ozone Depletion

III. Ozone FAQ

State of the World’s Forests

U.S. Energy Sources, 2006–2012

The 2005 Environmental Sustainability Index (ESI)

America's Troubled Waters

Safe Drinking Water Reports and Hotline

Top Ten Most Polluted Places in the World, 2007

Forced Conservation

Greatest Oil Reserves by Country, 2007

America's 25 Most Ozone-Polluted Metropolitan Areas, 2007

America's 25 Most Ozone-Polluted Metropolitan Areas, 2008

America's 25 Most Ozone-Polluted Metropolitan Areas, 2009

America's 25 Most Ozone-Polluted Metropolitan Areas, 2010

America's 25 Most Ozone-Polluted Metropolitan Areas, 2011

America's 25 Most Ozone-Polluted Metropolitan Areas, 2012

Why Build Green?

Do Cell Phones Cause Cancer?

Cleanest U.S. Cities for Ozone Air Pollution 2007

Earth Day: History, Stats & Facts, Recycling Tips & More

Earth Day

Global Food Crisis

A Warming Ocean

Green Weddings

Top Ten Green Hotels in the United States, 2007

Top Ten Green Hotels in the United States, 2010

Top Ten Green Hotels in the United States, 2012

Top Ten Green Hotels in the United States, 2013

Top Ten Green Hotels in the United States, 2014

Living Off the Grid

The Top 10 Lowest Radiation Cell Phones, 2012

The Top 10 Lowest Radiation Cell Phones, 2013

Top Ten Greenest Colleges in the U.S., 2011

Top Ten Greenest Colleges in the U.S., 2012

Top Ten Greenest Colleges in the U.S., 2013

Top Ten Toxic Industries

Top Ten Most Polluted Places in the World, 2012

The World's Worst Pollution Problems, 2008

The World's Worst Pollution Problems, 2011

The World's Worst Pollution Problems, 2012

The Year of the Potato

Earth Day: History, Stats & Facts, Recycling Tips & More

Top Carbon Dioxide Emitters

 

Marine Debris in the United States

America's 25 Most Ozone-Polluted Cities, 2007

Water Supply of the World

Renewable Energy Consumption in the U.S. by Source, 1989-2010

Estimated Number of Alternative-Fueled Vehicles in the U.S., 1992-2005

Major Air Pollutants

Motor Vehicle Fuel Consumption and Travel in the U.S., 1960-2006

Ten Most Visited National Parks

National Historical Parks

National Monuments

National Preserves

National Reserves

National Military Parks

National Battlefields

National Battlefield Parks

National Battlefield Site

National Historic Sites

National Memorials

National Cemeteries1

National Seashores

Parkways

National Lakeshores

National Park System Rivers

Other Parks

National Recreation Areas

National Scenic Trails1

International Historic Site

Largest Nuclear Power Plants in the U.S.

National Forest System, 1900-2004

World Energy Consumption and Carbon Dioxide Emissions, 1990–2025

America's Ten Most Endangered Rivers, 2006

Historical and Projected Capacities for Nuclear Electricity Generation, 1996–2020

World Net Electricity Consumption by Selected Regions, 1990–2025

U.S. Emissions of Greenhouse Gases, 2001–2006

Air Quality in Selected U.S. Cities, 1990–2000

Greatest Oil Reserves by Country, 2006

Greatest Natural Gas Reserves by Country, 2006

NATIONAL PARKS

Most and Least Fuel Efficient Vehicles, 2008

America's 25 Most Ozone-Polluted Metropolitan Areas, 2006

Top Energy Producers and Consumers, 2006

Top World Oil Producers, Exporters, Consumers, and Importers, 2006

International Park

National Historic Area

National Heritage Areas

National Heritage Corridors

National Historic Trails1

Top Ten Types of Debris Littering the Oceans

2008 Environmental Performance Index

The Toxic 100: Top Corporate Air Polluters in the United States

The Top Carbon Dioxide Emitters

Drinking Water and Sanitation Around the World

Top Energy Producers and Consumers, 2008

Retail Motor Gasoline Prices in Selected Countries, 2006

Retail Motor Gasoline Prices in Selected Countries, 2015

Greatest Oil Reserves by Country

Top Energy Producers and Consumers, 2008

Top Oil Producers and Consumers, 2010

Top Oil Producers and Consumers, 2011

Top Oil Producers and Consumers, 2012

Top Oil Producers and Consumers, 2013

U.S. Energy Consumption by Energy Source, 2002–2012

Sources of U.S. Oil Imports

World Carbon Dioxide Emissions From Energy Consumption, 2004

World Primary Energy Consumption by Region, 1995–2004

World Primary Energy Production by Region, 1995–2004

World Primary Energy Production by Source, 1970–2007

America's Ten Most Endangered Rivers, 2007

America's Ten Most Endangered Rivers, 2008

America's Ten Most Endangered Rivers, 2010

America's Ten Most Endangered Rivers, 2011

America's Ten Most Endangered Rivers, 2012

America's Ten Most Endangered Rivers, 2013

America's 25 Most Ozone-Polluted Metropolitan Areas, 2013

America's 25 Most Ozone-Polluted Metropolitan Areas

2014 Environmental Performance Index

Most and Least Fuel Efficient Vehicles, 2005

America's Top Ten Greenest Buildings

Ten Most Visited National Parks, 2012

Ten Most Visited National Parks, 2013

Ten Most Visited National Parks, 2015

The Pilot 2006 Environmental Performance Index

Thirstiest Crops

The Toxic 100: Top Corporate Air Polluters in the United States, 2010

The Toxic 100: Top Corporate Air Polluters in the United States, 2012

Top Ten Types of Debris Littering the Oceans, 2012

Top Ten Types of Debris Littering the Oceans, 2013

Top Ten Types of Debris Littering the Oceans, 2014

Top Ten Greenest Colleges in the U.S., 2008

Top Ten Greenest Colleges in the U.S., 2009

Top Ten Greenest Colleges in the U.S., 2010

U.S. Emissions of Greenhouse Gases, 1990–2000

Top Ten Most Polluted Places in the World, 2013

Ten Most Visited National Parks, 2014

Top Ten Dog Breeds

Oil Reliance

Table of Geological Periods

Ten Most Visited National Parks, 2006

Ten Most Visited National Parks, 2009

Ten Most Visited National Parks, 2010

Ten Most Visited National Parks, 2011

Environment

Energy

Nature

Periodic Table

Slideshow: Non-Native Species Invade the United States

Non-Native Species: Land Animals

Non-Native Species: Aquatic Animals

The Top Ten: Least Polluting Cars, 2006

The Top Ten: Least Polluting Cars, 2007

The Top Ten: Most Polluting Cars, 2006

The Top Ten: Most Polluting Cars, 2007

The Top Ten: Top Oil Consumers

What the Frack

No Tripping the Light Fantastic over This Debate

Recycling Facts

Climate Change Imperils Future of Several Nations