Jet-setting London mayor blasted for activating 'climate clock' with ominous 6-year warning: 'Leave us alone'

London Mayor Sadiq Khan was widely mocked on social media this week for activating a "climate clock" that shows how much time the world has left to reduce greenhouse emissions.

"Today with His Majesty King Charles III we launched the Climate Clock — a visual reminder of the urgency of the climate crisis," Khan posted on Twitter along with a video of himself activating the clock with King Charles III.

The clock’s countdown started at 6 years and 24 days, which climate activists say is the deadline to meet the Paris Agreement guideline to stop the Earth from heating more than 1.5 degrees Celsius.

"The climate emergency poses a threat not only to the future of our city but to the future of our world and that is why it must remain a key priority," Khan added.

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King Charles III, right, reacts as London Mayor Sadiq Khan activates the "Climate Clock," an indicator that will highlight the predication that there are just over six years to act in order to limit global warming to 1.5 degrees. (Photo by Justin Tallis - WPA Pool/Getty Images)

Khan’s post was "ratioed" and widely mocked on Twitter, as many users likened him to climate activist Greta Thunberg and said they doubt that action must be taken in six years.

"What a load of nonsense," British politician David Kurten tweeted. "There is no climate emergency."

"Leave Us Alone," Canadian conservative author and podcast host Jordan Peterson posted.

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King Charles III, right, talks with London Mayor Sadiq Khan after Khan activated the "Climate Clock," an indicator that will highlight the predication that there are just over six years to act in order to limit global warming to 1.5 degrees, according to data from the IPCC and MCC. (Photo by Justin Tallis - WPA Pool/Getty Images)

Khan, one of the most prominent supporters of the climate change movement, has been criticized in the past over his reluctance to condemn private jet usage in London, as well as the air travel miles he has racked up since taking office while warning about climate change.

"Hasn’t he heard of Zoom?" Khan’s critics tweeted in October when the liberal mayor flew 7,000 miles across the globe from the United Kingdom to Argentina to speak at a climate change summit.

London Mayor Sadiq Khan speaks on stage during Pride in London 2022: The 50th Anniversary at Trafalgar Square on July 2, 2022 in London. (Photo by Tristan Fewings/Getty Images for Pride In London)

A spokesperson for Khan's office told Fox News Digital that the mayor cycles and uses public transport whenever possible and flies commercial, not private, if no appropriate alternative exists.  

Andrew Mark Miller is a writer at Fox News. Find him on Twitter @andymarkmiller and email tips to This email address is being protected from spambots. You need JavaScript enabled to view it..