Tonga
party to: Biodiversity, Climate Change, Climate Change-Kyoto
Protocol, Desertification, Law of the Sea, Marine Dumping, Marine
Life Conservation, Ozone Layer Protection, Ship Pollution
signed, but not ratified: none of the selected agreements

Trinidad and Tobago
party to: Biodiversity, Climate Change, Climate
Change-Kyoto Protocol, Desertification, Endangered Species,
Hazardous Wastes, Law of the Sea, Marine Dumping, Marine Life
Conservation, Ozone Layer Protection, Ship Pollution, Tropical
Timber 83, Tropical Timber 94, Wetlands
signed, but not ratified: none of the selected agreements

Tunisia
party to: Biodiversity, Climate Change, Climate Change-Kyoto
Protocol, Desertification, Endangered Species, Environmental
Modification, Hazardous Wastes, Law of the Sea, Marine Dumping,
Ozone Layer Protection, Ship Pollution, Wetlands
signed, but not ratified: Marine Life Conservation

Turkey
party to: Air Pollution, Antarctic Treaty, Biodiversity,
Climate Change, Desertification, Endangered Species, Hazardous
Wastes, Ozone Layer Protection, Ship Pollution, Wetlands
signed, but not ratified: Environmental Modification

Turkmenistan
party to: Biodiversity, Climate Change, Climate
Change-Kyoto Protocol, Desertification, Hazardous Wastes, Ozone
Layer Protection
signed, but not ratified: none of the selected agreements

Tuvalu
party to: Biodiversity, Climate Change, Climate Change-Kyoto
Protocol, Desertification, Law of the Sea, Ozone Layer Protection,
Ship Pollution, Whaling
signed, but not ratified: none of the selected agreements

Uganda
party to: Biodiversity, Climate Change, Climate Change-Kyoto
Protocol, Desertification, Endangered Species, Hazardous Wastes, Law
of the Sea, Marine Life Conservation, Ozone Layer Protection,
Wetlands
signed, but not ratified: Environmental Modification

Ukraine
party to: Air Pollution, Air Pollution-Nitrogen Oxides, Air
Pollution-Sulfur 85, Antarctic-Environmental Protocol,
Antarctic-Marine Living Resources, Antarctic Treaty, Biodiversity,
Climate Change, Climate Change-Kyoto Protocol, Endangered Species,
Environmental Modification, Hazardous Wastes, Law of the Sea, Marine
Dumping, Ozone Layer Protection, Ship Pollution, Wetlands
signed, but not ratified: Air Pollution-Persistent Organic
Pollutants, Air Pollution-Sulfur 94, Air Pollution-Volatile Organic
Compounds

United Arab Emirates