New York—A group of world leaders expressed a shared commitment to continue working closely together to address and resolve all major impediments to reaching an ambitious agreement in Paris at an informal working lunch on climate change.

The lunch was hosted by UN Secretary-General Ban Ki-moon, French President François Hollande and Peruvian President Ollanta Humala Tasso and attended by a small but representative group of world leaders.

The Secretary-General told a press briefing immediately after the meeting that leaders expressed “their resolve to finalize a durable, meaningful agreement in Paris that applies to all countries.”

He added that “leaders voiced broad support for a durable agreement that will accelerate investments in clean energy and spur a global, low-carbon transformation well before the end of the century, consistent with a below 2 degrees Celsius pathway.”

President Hollande said, “Everyone is convinced that there will be an agreement in Paris the question is what kind? In Paris, it is not about signing just a text, but a text that commits us for decades, that concerns all countries with a legal weighting and that every five years we can evaluate what has been done.”

“The question is whether it will be credible,” he asked, and added, “there is still a lot of work to do.”

According to the conclusions of co-chairs, the leaders discussed ways they can help forge an agreement that would keep global temperature rise to less than 2 degrees Celsius.

Many of the leaders were in New York to attend the Sustainable Development Summit and the UN General Assembly Debate.

“We have just adopted an inspiring new sustainable development agenda,” Mr. Ban said. “We must continue the momentum with a robust agreement in Paris.   That is what the world’s people expect and need.”

The meeting, he said, was not a negotiation, but rather “an informal gathering to inject greater political energy.” But he said there were several points of political understanding emerged from the discussions.

According to the readout from the meeting, leaders said they would work to provide clear guidance and exercise greater oversight over their Ministers and negotiators, and would assess progress towards finalizing the new agreement through periodic interactions including on the margins of upcoming major regional and international meetings.

Leaders also discussed how Paris agreement must be a decisive turning point in the world’s collective response to the climate challenge. And there was a collective sense that a durable agreement will accelerate investments in clean energy and spur a global, low-carbon transformation well before the end of the century.

There was also consensus that the agreement must strengthen resilience to inevitable climate impacts, with a focus on the poorest and most vulnerable.

The lunch was prepared to reflect the importance of agriculture and highlight the problem of food waste—more than one billion tons of edible food each year goes to waste. The lunch was produced from food that would otherwise end up in landfills, emitting methane, a potent greenhouse gas.