extremes: This entry includes both the highest point and the lowest point.
Entities: Some of the independent states, dependencies, areas of special sovereignty, and governments included in this publication are not independent, and others are not officially recognized by the US Government. "Independent state" refers to a people politically organized into a sovereign state with a definite territory. "Dependencies" and "areas of special sovereignty" refer to a broad category of political entities that are associated in some way with an independent state. "Country" names used in the table of contents or for page headings are usually the short-form names as approved by the US Board on Geographic Names and may include independent states, dependencies, and areas of special sovereignty, or other geographic entities. There are a total of 266 separate geographic entities in The World Factbook that may be categorized as follows:
INDEPENDENT STATES
194 Afghanistan, Albania, Algeria, Andorra, Angola, Antigua and
Barbuda, Argentina, Armenia, Australia, Austria, Azerbaijan, The
Bahamas, Bahrain, Bangladesh, Barbados, Belarus, Belgium, Belize,
Benin, Bhutan, Bolivia, Bosnia and Herzegovina, Botswana, Brazil,
Brunei, Bulgaria, Burkina Faso, Burma, Burundi, Cambodia, Cameroon,
Canada, Cape Verde, Central African Republic, Chad, Chile, China,
Colombia, Comoros, Democratic Republic of the Congo, Republic of the
Congo, Costa Rica, Cote d'Ivoire, Croatia, Cuba, Cyprus, Czech
Republic, Denmark, Djibouti, Dominica, Dominican Republic, Ecuador,
Egypt, El Salvador, Equatorial Guinea, Eritrea, Estonia, Ethiopia,
Fiji, Finland, France, Gabon, The Gambia, Georgia, Germany, Ghana,
Greece, Grenada, Guatemala, Guinea, Guinea-Bissau, Guyana, Haiti, Holy
See, Honduras, Hungary, Iceland, India, Indonesia, Iran, Iraq, Ireland,
Israel, Italy, Jamaica, Japan, Jordan, Kazakhstan, Kenya, Kiribati,
North Korea, South Korea, Kosovo, Kuwait, Kyrgyzstan, Laos, Latvia,
Lebanon, Lesotho, Liberia, Libya, Liechtenstein, Lithuania, Luxembourg,
Macedonia, Madagascar, Malawi, Malaysia, Maldives, Mali, Malta,
Marshall Islands, Mauritania, Mauritius, Mexico, Federated States of
Micronesia, Moldova, Monaco, Mongolia, Montenegro, Morocco, Mozambique,
Namibia, Nauru, Nepal, Netherlands, NZ, Nicaragua, Niger, Nigeria,
Norway, Oman, Pakistan, Palau, Panama, Papua New Guinea, Paraguay,
Peru, Philippines, Poland, Portugal, Qatar, Romania, Russia, Rwanda,
Saint Kitts and Nevis, Saint Lucia, Saint Vincent and the Grenadines,
Samoa, San Marino, Sao Tome and Principe, Saudi Arabia, Senegal,
Serbia, Seychelles, Sierra Leone, Singapore, Slovakia, Slovenia,
Solomon Islands, Somalia, South Africa, Spain, Sri Lanka, Sudan,
Suriname, Swaziland, Sweden, Switzerland, Syria, Tajikistan, Tanzania,
Thailand, Timor-Leste, Togo, Tonga, Trinidad and Tobago, Tunisia,
Turkey, Turkmenistan, Tuvalu, Uganda, Ukraine, UAE, UK, US, Uruguay,
Uzbekistan, Vanuatu, Venezuela, Vietnam, Yemen, Zambia, Zimbabwe
OTHER
2 Taiwan, European Union
DEPENDENCIES AND AREAS OF SPECIAL SOVEREIGNTY
6 Australia - Ashmore and Cartier Islands, Christmas Island, Cocos (Keeling) Islands, Coral Sea Islands, Heard Island and McDonald Islands, Norfolk Island
2 China - Hong Kong, Macau
2 Denmark - Faroe Islands, Greenland
9 France - Clipperton Island, French Polynesia, French Southern and Antarctic Lands, Mayotte, New Caledonia, Saint Barthelemy, Saint Martin, Saint Pierre and Miquelon, Wallis and Futuna
2 Netherlands - Aruba, Netherlands Antilles
3 New Zealand - Cook Islands, Niue, Tokelau
3 Norway - Bouvet Island, Jan Mayen, Svalbard
17 UK - Akrotiri, Anguilla, Bermuda, British Indian Ocean Territory,
British Virgin Islands, Cayman Islands, Dhekelia, Falkland Islands,
Gibraltar, Guernsey, Jersey, Isle of Man, Montserrat, Pitcairn Islands,
Saint Helena, South Georgia and the South Sandwich Islands, Turks and
Caicos Islands
14 US - American Samoa, Baker Island*, Guam, Howland Island*, Jarvis
Island*, Johnston Atoll*, Kingman Reef*, Midway Islands*, Navassa
Island, Northern Mariana Islands, Palmyra Atoll*, Puerto Rico, Virgin
Islands, Wake Island (* consolidated in United States Pacific Island
Wildlife Refuges entry)
MISCELLANEOUS
6 Antarctica, Gaza Strip, Paracel Islands, Spratly Islands, West Bank, Western Sahara
OTHER ENTITIES
5 oceans - Arctic Ocean, Atlantic Ocean, Indian Ocean, Pacific Ocean, Southern Ocean
1 World
266 total
Environment - current issues: This entry lists the most pressing and important environmental problems. The following terms and abbreviations are used throughout the entry:
Acidification - the lowering of soil and water pH due to acid precipitation and deposition usually through precipitation; this process disrupts ecosystem nutrient flows and may kill freshwater fish and plants dependent on more neutral or alkaline conditions (see acid rain).
Acid rain - characterized as containing harmful levels of sulfur dioxide or nitrogen oxide; acid rain is damaging and potentially deadly to the earth's fragile ecosystems; acidity is measured using the pH scale where 7 is neutral, values greater than 7 are considered alkaline, and values below 5.6 are considered acid precipitation; note - a pH of 2.4 (the acidity of vinegar) has been measured in rainfall in New England.
Aerosol - a collection of airborne particles dispersed in a gas, smoke, or fog.
Afforestation
