Several countries have objected to the mention of a worldwide goal of limiting warming to 1.5 degrees Celsius in the text of the COP27 summit in Egypt, according to U.S. Special Climate Envoy John Kerry.

“You are 100 percent correct. Very few nations, but a few, have brought up the matter of omitting this word or that word, “When questioned about some governments’ objections to bringing up the 1.5C target, Kerry responded.

“But the fact is, that in Glasgow that was adopted, the language is there. And I know… Egypt doesn’t intend to be the country that hosts a retreat from what was achieved in Glasgow,” Kerry said, referring to last year’s COP summit in Scotland.

World governments agreed in 2015 during a U.N. summit in France to try to limit the average global temperature increase to 1.5C, a deal dubbed the Paris Agreement that was seen as a massive breakthrough in international ambition to fight climate change.

Greenhouse gas emissions have been rising since, however, and scientists say the world risks missing the target without swift and deep cuts. Breaching the 1.5C threshold risks unleashing the worst consequences of global warming.