The BBC has been blasted by an author and journalist who accused the broadcaster of being "blatantly partial".
Author Marcus Gibson demanded it be "cut back quite drastically", claiming it is currently a "huge entity".
Asked if the BBC can continue in its current form, Gibson told GB News: "The BBC needs to be cut back quite drastically as I say, to become a 1 billion turnover business, not the huge entity it is at the moment."
Speaking at the Alliance for Responsible Citizenship (Arc) Conference in London, he added: "Secondly, with issues like climate change, they must reintroduce impartiality and let other voices into the game. But why is it they claim that...GB news should be impartial, but then the BBC is blatantly partial on global warming?
WATCH: Marcus Gibson discusses the BBC
"As we know, the late Lord Lawson was banned.
"Many other people are banned. You know. And frankly David Attenborough only kept his job because he went along with the global warming myth when many other presenters were sacked."
Presenter Nana Akua challenged Gibson on his description of climate change as a "myth", to which Gibson responded: "Well, half of all weather stations in America, and many of them in this country, are airports. They're not ambient.
"35 per cent of America is forest. There's not a single National Weather station in an American forest.
"If you go to Chicago O'Hare Airport, which 100 years ago was an orchard, because you know the code is Ord for Chicago Airport, you'll realize you'll it was once an orchard, now it's the fourth world's largest, biggest airport, whatever it is."
Gibson's call for cutbacks to the BBC comes amid growing criticism of the broadcaster, particularly related to their coverage of the Israel-Hamas conflict.
The BBC came under fire for their refusal to label Hamas a terror organisation, but they recently changed their stance on the issue, choosing to refer to it as a "terrorist organisation as proscribed by the UK Government".
The Government defines Hamas as a "single terrorist organisation". But, until a few weeks ago, it continued to refer to it as a "militant" group, describing the invasion as a "militant" attack.
The BBC's editorial guidelines recommend avoiding the use of "emotive" language when reporting on Middle East events.
It suggests the use of words such as "militants", "attacker" or "gunman", instead of "terrorists".
Defending the BBC's decision not to directly describe Hamas as a terror group, a spokesperson for the broadcaster said: "The BBC's position is that when we use the word, we ascribe it to whoever's characterised them in that way.
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Nana Akua challenged Gibson on his description of climate change as a "myth"
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"So we make clear that the government has said that about Hamas. That's what we do.
"The reason why the BBC doesn't make the judgment is that it's not for us as a news organisation to ascribe any organisation as anything."
The BBC has been contacted for comment.