The final text of an international pact to fight global warming was expected to be released within hours, a French official said early Saturday, after negotiators leaving a meeting with France's foreign minister expressed optimism that success was within reach.

Foreign Minister Laurent Fabius aimed to present a new draft of the elusive accord Saturday at 11:30 a.m. local time, the French official said. The official spoke on condition of anonymity because he wasn't authorized to be publicly named discussing the negotiations.

That's a couple of hours later than Fabius had predicted, and a day after the original Friday deadline. But weary negotiators had an air of hope that had been lacking just hours earlier.


French Foreign Minister Laurent Fabius, the president-designate of COP21, said Friday he was confident a global accord to combat climate change could be adopted after a final draft is released on Saturday morning. (Stephane Mahe/Reuters)

"We are pretty much there," Egyptian Environment Minister Khaled Fahmy, the chairman of a bloc of African countries, told The Associated Press late Friday. "There have been tremendous developments in the last hours. We are very close."

A negotiator from a developed country was equally positive. "I think we got it," said the negotiator, who was not authorized to speak publicly as the talks were not over yet.

Negotiators from more than 190 countries in Paris are aiming to create something that's never been done before: an agreement for all countries to reduce man-made emissions of carbon dioxide and other greenhouse gases and help the poorest adapt to rising seas, fiercer weather and other impacts of global warming.

This accord is the first time all countries are expected to pitch in — the previous emissions treaty, the 1997 Kyoto Protocol, only included rich countries.

France Climate Countdown

The slogan 'NO PLAN B' is projected on the Eiffel Tower at the COP21 conference near Paris. Thousands of activists gathered under the tower Saturday to urge further action to limit global warming. (Francois Mori/The Associated Press)

After a final draft is presented, delegations are expected to spend a few hours studying it before it goes to a plenary meeting for eventual adoption.

Prime Minister Enele Sopoaga, of the Pacific island nation of Tuvalu, was upbeat.

"The signals that have come to me give me encouragement that we are going to have a very ... comprehensive and strong agreement in Paris," Sopoaga said.

Different rules for different countries?

Liu Zhenmin, deputy chief of the Chinese delegation, was more cautious. Asked whether the draft would be the final one, he said only if "it's more or less acceptable."

Earlier Friday, Liu stood firm on his nation's demand that rich countries should assume most responsibility for the costs and argued against an agreement that sets too-tough goals for weaning the world off using oil, gas and coal — the biggest source of carbon emissions.

The U.S. and European countries want to move away from so-called "differentiation" among economies and want big emerging countries like China and India to pitch in more in a final climate deal.

Liu told reporters that issue is "at the core of our concern for the Paris agreement." He said he wants different rules for different countries "clearly stipulated" in the global warming pact.

China is among the more than 180 countries that have submitted emissions targets for the new pact but is resisting Western proposals for robust transparency rules that would require each country to show whether it's on track to meet its target.

Liu also argued against sharply limiting the number of degrees the planet warms this century, because that would involve huge lifestyle and economic changes.

"We need heating. We need air conditioning. You need to drive your car," he said.

Indian Environment Minister Prakash Javadekar also said differentiation was the biggest dispute and accused developed countries of not showing enough flexibility in the talks.

However, signs of divisions among major developing countries surfaced Friday as Brazil joined an informal coalition of Western countries and some developing ones in a "high-ambition coalition" that is calling for a strong deal.

Liu dismissed the coalition as a "performance."

U.S. Secretary of State Kerry, on his fifth straight day in France trying to iron out differences with developing countries, said he's "hopeful" for an accord and has been working behind the scenes to reach compromises.

The pledges countries have made so far would fail to limit global warming to 2 C or less in the long term, as the text currently stipulates, Canadian environmentalist Naomi Klein said in an interview with CBC News.

Naomi Klein

Canadian environmentalist Naomi Klein says the pledges countries have made would fail to limit global warming to 2 C or less, let alone meet the more ambitious 1.5 C target. (Nahlah Ayed/CBC)

Klein also took issue with a clause that rules out any liability for climate change.

"I've never seen anything like this," she said, "where countries are literally fighting for their very survival, and because of that desperation they're being asked something that they really need a lot, which is their right to seek compensation later on.

"And I think Canada backing that position is really quite immoral."

Delays aren't bad sign

The talks are the culmination of years of UN-led efforts to create a long-term climate deal. UN climate conferences often run past their deadlines, given the complexity and sensitivity of each word in an international agreement and the consequences for national economies.

Analysts said the delay until Saturday was not necessarily a bad sign.

"This needs consensus," said Michael Jacobs, an economist with the New Climate Economy project, speaking to reporters. "There's a lot of negotiating to do."

A 27-page draft released Thursday said governments would aim to peak the emissions of heat-trapping greenhouse gases "as soon as possible" and strive to reach "emissions neutrality" by the second half of the century — a vague term generally understood to mean no more emissions than the Earth can naturally absorb. That was weaker language than in previous drafts, which included more specific emissions cuts and timeframes.

China's Liu said negotiators don't understand what is meant by "neutrality" and argued for an even softer "low-carbon" goal.

The draft didn't resolve how to deal with demands from vulnerable countries to deal with unavoidable damage from rising seas and other climate impacts. One option said such losses would be addressed in a way that doesn't involve liability and compensation — a U.S. demand.

Fabius said the world would not find a better moment to reach a global climate deal.

"All the conditions are met to reach a universal, ambitious agreement," he said.

With files from CBC News