A draft agreement published at the COP26 Glasgow climate summit has called for strengthening their carbon-cutting targets by the end of 2022.
The document says vulnerable nations must get more help to cope with the deadly impacts of global warming.
It also says countries should submit long-term strategies for reaching net-zero by the end of next year.
Critics have said the draft pact does not go far enough but others welcomed its focus on the 1.5C target.
The document, which has been published by the UK COP26 presidency, will have to be negotiated and agreed by countries attending the talks.
Pope’s Message
Pope Francis has earlier urged world leaders to take “radical decisions” at next week’s global environmental summit.
The Pope talked of crises including the Covid-19 pandemic, climate change and economic difficulties. He further urged the world to respond to them with vision and radical decisions. He also called not to “waste opportunities” that the current challenges present.
“We can confront these crises by retreating into isolationism, protectionism and exploitation. Or we can see in them a real chance for change, he further said.
Earlier, an UN-appointed panel of experts said that the earth is getting so hot
that temperatures in about a decade will probably blow past the most ambitious threshold
set in the Paris accord.
UN Secretary-General Antonio Guterres described the report as a “code red” for humanity.
He stressed that it “must sound a death knell for coal and fossil fuels before they destroy the planet.”
