note - abbreviated as Environmental Modification

opened for signature - December 10, 1976

entered into force - October 5, 1978

objective - to prohibit the military or other hostile use of environmental modification techniques in order to further world peace and trust among nations

parties - (66) Afghanistan, Algeria, Antigua and Barbuda, Argentina, Australia, Austria, Bangladesh, Belarus, Belgium, Benin, Brazil, Bulgaria, Canada, Cape Verde, Chile, Costa Rica, Cuba, Cyprus, Czech Republic, Denmark, Dominica, Egypt, Finland, Germany, Ghana, Greece, Guatemala, Hungary, India, Ireland, Italy, Japan, North Korea, South Korea, Kuwait, Laos, Malawi, Mauritius, Mongolia, Netherlands, New Zealand, Niger, Norway, Pakistan, Papua New Guinea, Poland, Romania, Russia, Saint Lucia, Saint Vincent and the Grenadines, São Tomé and Príncipe, Slovakia, Solomon Islands, Spain, Sri Lanka, Sweden, Switzerland, Tajikistan, Tunisia, Ukraine, United Kingdom, United States, Uruguay, Uzbekistan, Vietnam, Yemen

countries that have signed, but not yet ratified - (17) Bolivia, Democratic Republic of the Congo, Ethiopia, Holy See, Iceland, Iran, Iraq, Lebanon, Liberia, Luxembourg, Morocco, Nicaragua, Portugal, Sierra Leone, Syria, Turkey, Uganda

Source: CIA World Factbook, 2003 edition

see also environmental agreements, arms control agreements, the text of the agreement (PDF)  (http://www.unog.ch/frames/disarm/distreat/environ.pdf), the text of the agreement (ASCII) (http://fletcher.tufts.edu/multi/texts/BH700.txt)