The Convention on the Conservation of Migratory Species of Wild Animals, also known as CMS or the Bonn Convention, enters into force. It aims to conserve terrestrial, marine and avian migratory species throughout their range.
The Alliance '90/The Greens political party won 27 seats in the West German federal election. It was the first Green Party to gain representation in state elections.
The Commonwealth v Tasmania, a significant Australian court case was decided in the High Court of Australia. It was a landmark decision in Australian constitutional law, and was a significant moment in the history of conservation in Australia. The case centered on the proposed construction of a hydro-electric dam on the Gordon River in Tasmania, which was supported by the Tasmanian government, but opposed by the Australian federal government and environmentalist groups.