French hosts submitted to cheers and applause Saturday a proposed 195-nation accord aimed at curbing emissions of the heat-trapping gases that threaten to wreck Earth's climate system.
Foreign Minister Laurent Fabius, on the brink of tears after presiding over nearly a fortnight of talks in Paris that ran into overtime despite all-night negotiations, delivered the accord to ministers who must now decide whether or not to approve it.
"The world is holding its breath and counting on all of us," said Fabius, his voice occasionally breaking with emotion.
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Describing it as "an historic accord", Fabius said the agreement would aim to limit warming of the planet since the Industrial Revolution to "well" below 2.0 degrees Celsius (3.6 Fahrenheit) and strive for an even more ambitious goal of 1.5C (2.7F).
French President Francois Hollande urged ministers gathered in Paris Saturday for UN climate talks, to take the "decisive" step in adopting what he termed an "historic" pact to rein in global warming.
"You have to take the final step, the decisive step which allows us to reach the goal," he told ministers and delegates gathered to receive the final draft of the agreement to be reviewed, and hopefully approved later Saturday. "This will be the first universal accord in the history of climate negotiations."
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US Secretary of State John Kerry expressed optimism Saturday that the latest proposed text of the UN climate deal would be approved by the nations meeting in Paris.
"It should be good, but we'll see. Little things can happen, but we think it's teed up," Kerry told reporters between meetings at the global conference.