GB News' Royal Correspondent Cameron Walker said regarding the contrast: "I think what we have to remember is that the speech that the King delivered at the senate yesterday, would have been written in collaboration with the United Kingdom government and particularly the foreign secretary James Cleverly.
WATCH: Cameron Walker explained contrast between King and William
"[Cleverly] was stressing yesterday that the Prime Minister and the King are completely aligned when it comes to climate policies.
"But nonetheless, we do have to point out the coincidence of Rishi Sunak's announcement of rolling back some of those Net Zero policies, immediately before the King delivered a speech where he spoke a lot about climate change and the need of urgency when it comes to tackling climate change and environmental issues.
"The King was also in contrast to his son the Prince of Wales, who earlier this week was warning in New York that we shouldn't be too 'doom and gloom' when it comes to tackling climate change.
"We should be far more optimistic when it comes to tackling those sorts of environmental issues. So yes, very ironic."
King Charles and Queen Camilla arrive in Bordeaux
King Charles and Queen Camilla are on the last day of their royal tour
King Charles and Queen Camilla travelled to Bordeaux today from Paris via plane, which led to some criticism due to the King's passionate stance on climate change.
The couple were originally due to take the train, but changed their plans at the last minute due to a security leak.
In Bordeaux, Charles and Camilla were greeted by the French Minister of Defence, Monsieur Sébastien Lecornu.
The King and Queen have a packed schedule of engagements today, which has been designed to recognise the city’s longstanding association with the UK.
King Charles giving a speech in the French Senate
Prince William gave a more positive perspective on climate change