Russia's upper house of parliament this morning ratified the Kyoto Protocol and sent it to President Vladimir Putin for the final stamp of approval which should bring the global climate pact into force early next year.
The Federation Council voted 139-1 with one abstention to endorse the protocol, which aims to stem global warming by reducing greenhouse-gas emissions.
The quick vote came four days after the lower house ratified the treaty.
Without Russia's support, the pact which has been rejected by the United States and Australia cannot come into effect.
It needs ratification by 55 industrialized nations accounting for at least 55 per cent of global greenhouse gas emissions in 1990.
Mr Putin pledged in May to speed up ratification in return for the European Union's support of Russia's bid to join the World Trade Organization, and he's expected to sign it quickly.
The 1997 pact will take effect 90 days after Russia notifies the United Nations of its ratification.