MOSCOW (AFP) - Russia on Thursday hinted that it may refuse to sign up to a new round of targeted carbon cuts that could see the Kyoto environmental protection treaty extended beyond its end of 2012 expiry date. “One has to admit that we never got any real commercial gain from the Kyoto Protocol,” news agencies quoted Prime Minister Dmitry Medvedev as telling a government meeting. “That does not mean that we have to try and drag it (the treaty) out any further,” Medvedev added. European diplomats at the May G8 summit in France said that Russia along with Japan and Canada had confirmed plans not to join the second round of carbon cuts. Russia ratified the treaty in 2004.