It comes after the Queen was overheard expressing concern that it was unclear as to who would be present at the meeting of world leaders. Mohammed bin Salman would be joining leaders of other nations which contribute a large share of the world’s CO2 emissions, including Russia’s Vladimir Putin and China’s Xi Jinping, who have also yet to say they will be there.
Government sources told The Telegraph they are still hopeful that the Crown Prince might attend the summit, but said that his presence was not essential to whether it succeeded.
Boris Johnson has made the climate summit the centrepiece of his green agenda, and hopes to get world leaders to agree policies to tackle global warming.
He said during his speech to the UN last month that hoped the conference would be a moment “we choose to grow up”.
The Queen was recorded saying at the opening of the Welsh Senedd last Thursday that “I still don’t know who’s coming” to COP26.
READ MORE: Queen ‘right’ to be ‘irritated’ by lack of climate change action
She remarked that “we only know about people who are not coming”.
The Queen was also heard describing it as “irritating” when leaders “talk, but they don’t do”.
Her words echo those of her grandson, Prince William, who last week warned those attending the summit against “clever speak, clever words, but not enough action”.
He said it was “critical” that world leaders “communicate very clearly and very honestly what the problems are and what the solutions are going to be”.
He added that the nation – which in 2019 was the fourth largest emitter of CO2 in the world – took the issue of climate change “very seriously”, pointing to Mr Putin’s goal of being carbon neutral by 2060.
Mr Kelin said: “We are not very much in a hurry, we do not want to jump. We do not believe that putting artificial goals and not very much calculated goals will help in this situation.”
Saudi Arabia is the tenth largest CO2 polluter in the world as of 2019, but is by far the largest exporter of crude oil.
Russia is the second largest exporter of crude oil, as of 2020.
It is not the first time the largest polluters have snubbed Mr Johnson when it came to the issue of climate change.
The Prime Minister held a meeting with world leaders on the issue at the UN last month, alongside UN Secretary-General António Guterres.
However, the premiers of China, the United States and India missed the meeting, despite being invited – and despite being in charge of the three countries with the largest carbon footprint.
In his speech to the UN assembly in September, the PM said: “We still cling with part of our minds to the infantile belief that the world was made for our gratification and pleasure and we combine this narcissism with an assumption of our own immortality.
“We believe that someone else will clear up the mess we make, because that is what someone else has always done.
“We trash our habitats again and again with the inductive reasoning that we have got away with it so far, and therefore we will get away with it again.”
Mr Johnson added that the human race was approaching a “critical turning point” when “we must show that we are capable of […] finally taking responsibility for the destruction we are inflicting, not just upon our planet but ourselves.”