Rasmussen spoke ahead of an EU summit at which climate change will be one of the main topics.
December's eagerly anticipated United Nations' Copenhagen Climate Summit will attempt to hammer out a new global climate treaty to replace the UN Kyoto Protocol.
But Mr Rasmussen said he did not believe a final deal on reducing greenhouse emissions could be reached at the meeting. , BBC News reports.
It was also reported, EU leaders are meeting in Brussels to agree a negotiating mandate for global talks in Copenhagen in December to find a successor to the Kyoto Protocol, the current U.N. scheme for battling climate change which expires in 2012.
Sweden, which holds the EU's rotating presidency, has proposed a way of protecting Europe's poorer eastern states from overpaying in a Copenhagen deal, but they are not satisfied.
"The burden-sharing proposal is not acceptable in its current form," Bajnai told a news conference, Reuters reports.
In the meantime, train drivers from all over the world will be on board of a one-time train that will start from Kyoto in Japan and will reach
Copenhagen in one month, to galvanise political will and garner public support for reaching a comprehensive global climate agreement in December.
The United Nations Environment Programme (UNEP) has launched this symbolic expedition, which will cover a 9000 kilometre journey to connect the city where the last binding climate change treaty was negotiated (Kyoto Protocol) to the stage of next critical agreement.
"We are on the road to nowhere if existing policies and economic models prevail with their over-emphasis on private cars and on shifting shipments of goods to the roads," UNEP chief Achim Steiner.
The transport sector already accounts for over one fifth of global CO2 greenhouse emissions, which are projected to double within only 40 years , Times of India reports .