with the emphasis on 'may' - it sounds like the behind the scenes dealing isn't finished yet.
http://news.independent.co.uk/europe/story.jsp?story=513638An anonymous Kremlin source told the daily Kommersant that the announcement may be made during a two-day visit to Russia by Italy's Prime Minister, Silvio Berlusconi, which started yesterday. If Russia's policy shift on Kyoto is not made public during the visit it is likely to emerge at an EU-Russia summit in May.
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An expert from the Russian branch of Greenpeace told The Independent that the only reason Russia had not yet signed was because it was hoping to extract further concessions from the EU. Russia's ratification of the landmark global warming pact had become "a political game", said Natalia Olsirenko, of Greenpeace. "It is highly probable that the Kremlin will ratify the pact."
A Russian rapprochement with Brussels has been fuelled by recent progress in its negotiations with the EU over Moscow's bid to join the World Trade Organisation.