Alaska

Arizona

Utah

Yukon

Northwest Territories

Idaho

Washington

Nunavut

Montana

Maine

Kentucky

Nova Scotia

Virginia

Texas

Missouri

North Carolina

Oregon

New Brunswick

New Mexico

British Columbia

Newfoundland and Labrador

Colorado

Nevada

Massachusetts

New York

Manitoba

Tennessee

Ontario

California

Arkansas

South Dakota

Illinois

None

<p>A world map shows lead mining locations marked by lilac circles with "P b." Key areas include the western U S, Mexico, Peru, Bolivia, Brazil, Europe, North Africa (Algeria, Tunisia, Morocco), Russia (Siberia), Iran, China, India, Australia, and Japan.</p>

Lead Mines

World

USGS

Wyoming

<p>A world map shows nitrate mining locations marked by orange circles with "N." Key areas include the U S, Mexico, Chile, and Spain. Major clusters are in the U S (western states), Mexico, and northern Chile's Atacama Desert.</p>

Nitrate Mines

Anthropogenic Biomes

Areas at Risk of Soil Degradation

Average Annual Precipitation

Biomes

Climate Zones

Global Mean Temperature, January

Global Mean Temperature, July

Global Surface Warming: Worst-Case Projections (NASA)

Insolation

Land Cover

Major Soil Orders

Prevailing Agricultural Practices

World Elevations