"I'm taking advantage of this meeting to (ask) that every country meets its obligations and that they do so quickly," he told an economics forum in Le Havre, northwest France.
So far 63 governments have submitted pledges known as Intended Nationally Determined Contributions, or INDCs, that will form the backbone of a universal climate pact to be forged at a November 30-December 11 United Nations conference in the French capital.
Including major emitters China, the United States and the 28-member European Union, pledges so far are from countries responsible for roughly 65 percent of global emissions, and home to 43 percent of the world population.
Brazil, India, Indonesia and South Africa are among the major developing country polluters yet to submit pledges.
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No strict deadline had been set, but the secretariat of the UN body supervising the negotiations has promised to report by November 1 on how much impact the combined pledges would have on keeping global warming limited to two degrees.
"There is a general will here, but it is still not enough," Fabius said. "The movement has to pick up speed."
The foreign minister noted the draft of the text was "too long" at 80-plus pages, with "too many options", and had to be trimmed to about 20 pages.