UN Secretary-General António Guterres called the situation, which the report described as "red code for humanity".
He is not alone in expressing concern for the future.
- It is clear that the coming decade will be crucial in securing the future of our planet.
We know what needs to be done to limit global warming - send coal to history and move to clean energy sources, writes the Prime Minister of the United Kingdom Boris Johnson in a press release.
Important meeting in November
The report has also reached Washington and the White House:
- The signs are unmistakable.
Science is undeniable.
And the cost of inaction continues to rise, US President Joe Biden wrote on Twitter.
The US climate envoy also urged world leaders to act.
- Now it's time for action and Glasgow must be a turning point in this crisis, writes John Kerry.
He refers to the climate conference that the UN will hold on 1-2 November in Glasgow, Scotland.
A meeting in which more leaders emphasize the importance of.
- The time for indignation is behind us.
We need an agreement in Glasgow that is up to urgency at the moment, writes French President Emanuel Macron.
"Our per capita emissions are low"
Indian Prime Minister Narendra Modi has not commented.
In 2019, they were the country that emitted the third most carbon dioxide.
The country's environment minister, Bhupender Yadav, says India has done a great deal to combat climate change and that "our per capita emissions are low and much less than the fair share of the global carbon budget."
The list is topped, without competition, by China.
The country has more than twice as much emissions as the United States, which is in second place.
The country's government has not commented on the report, but already has a stated goal of being climate neutral by 2060.