6 Australia--Ashmore and Cartier Islands, Christmas Island, Cocos (Keeling) Islands, Coral Sea Islands, Heard Island and McDonald Islands, Norfolk Island 1 China--Hong Kong 2 Denmark--Faroe Islands, Greenland 16 France--Bassas da India, Clipperton Island, Europa Island, French Guiana, French Polynesia, French Southern and Antarctic Lands, Glorioso Islands, Guadeloupe, Juan de Nova Island, Martinique, Mayotte, New Caledonia, Reunion, Saint Pierre and Miquelon, Tromelin Island, Wallis and Futuna 2 Netherlands--Aruba, Netherlands Antilles 3 New Zealand--Cook Islands, Niue, Tokelau 3 Norway--Bouvet Island, Jan Mayen, Svalbard 1 Portugal--Macau 15 UK--Anguilla, Bermuda, British Indian Ocean Territory, British Virgin Islands, Cayman Islands, 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 Atoll MISCELLANEOUS 6 Antarctica, Gaza Strip, Paracel Islands, Spratly Islands, West Bank, Western Sahara OTHER ENTITIES 4 oceans--Arctic Ocean, Atlantic Ocean, Indian Ocean, Pacific Ocean 1 World 266 Tota l Environment--current issues: This entry lists the most pressing and important environmental problems. Environment--international agreements: This entry separates country participation in international environmental agreements into two levels--party to and signed but not ratified. Agreements are listed in alphabetical order by the abbreviated form of the full name. Environmental agreements: This information is presented in Appendix D: Selected International Environmental Agreements, which includes the name, abbreviation, date opened for signature, date entered into force, objective, and parties by category. Ethnic groups: This entry provides a rank ordering of ethnic groups starting with the largest and normally includes the percent of total population. Exchange rates: This entry provides the official value of a country's monetary unit at a given date or over a given period of time, as expressed in units of local currency per US dollar and as determined by international market forces or official fiat.