GLASGOW, Scotland — Countries must come together urgently to find political consensus on issues like the promise of money from rich countries for poor countries to combat climate change or to adapt to climate shocks, says Alok Sharma, who is chairing the two-week climate talks in Glasgow.

“We have only a few days left,” he said.

Sharma said that the commitments made by countries in the first week of the talks narrowed the gap but weren’t enough. He said that countries now have to shift immediately to making good on those promises.

He said that with the commitments the world is bending the curve to limit warming to 2 degrees Celsius. “But of course, that isn’t good enough,” he said, reiterating that the target for these talks was to try to ensure that warming is less than 1.5 degrees Celsius.

Archie Young, the U.K.’s lead negotiator, said that there have been three main areas where there have been disagreements during the negotiations: a mechanism for helping countries with the losses they suffer from climate change, how the progress on countries’ own climate targets would be tracked and the support that poor countries need to become more transparent.

But Sharma maintained that there remained an “opportunity to succeed,” adding that the transition to a zero-carbon economy isn’t just possible technologically. “It is economically attractive, and it’s accelerating everywhere. And if we successfully manage this, we deliver immense benefits for the world.”