PARIS - With encouragement from 150 world leaders ringing in their ears, government negotiators in Paris were on Tuesday left to turn the rhetoric into reality and agree a draft text of a global deal to slow climate change.

U.S. President Barack Obama and Chinese President Xi Jinping made common cause on Monday with other countries to stress the urgency of an agreement to slow a rise in global temperatures blamed for spurring floods, heat waves and rising sea levels.

But as the leaders left Paris, negotiators from 195 countries were left to work on a draft text of more than 50 pages still riddled with disagreements.

The main sticking point is how to come up with the billions of dollars needed to finance the cleaner energy sources that are badly needed if emerging countries are to develop without relying heavily on fossil fuels.

Many delegates said the large turnout at the U.N. climate summit in Paris, weeks after attacks by Islamic State militants killed 130 people, was a sign of hope after the last summit collapsed in failure in 2009 in Copenhagen amid rancor between rich and poor nations.

French President Francois Hollande said he was encouraged by the start of talks that are planned to run until Dec. 11.

"It's set off well but it has to arrive too," he told reporters. He said there were "two reefs. Either we overload the vessel and it sinks or we empty it and it goes nowhere."

The technical talks repeated little of Monday's grand language. Countries restated their negotiating positions with few hints of likely compromise.(Reuters)