In recent years, his public speaking has garnered attention due to his denial of climate change[2][3][4][5] and his views on the European Union[6] and social policy.

[7] He has three brothers, Timothy, Jonathan and Anthony, and a sister, Rosa, Baroness Monckton of Dallington Forest, wife of journalist Dominic Lawson.

He is also a qualified Day Skipper with the Royal Yachting Association, and has been a trustee of the Hales Trophy for the Blue Riband of the Atlantic since 1986.

[8] After a hiatus in his career as a journalist Monckton became assistant editor of the newly established, and now defunct, tabloid newspaper Today in 1986.

[13] UKIP's CV for Monckton claims that his methods have produced cures for multiple sclerosis, influenza, and herpes, as well as reducing the viral load of an HIV patient.

[15] In 1979, Monckton met Alfred Sherman, who co-founded the pro-Conservative think tank the Centre for Policy Studies (CPS) with Margaret Thatcher and Keith Joseph in 1974.

"[23] Writing in The Guardian, Bob Ward of the Grantham Research Institute on Climate Change and the Environment notes that Thatcher's memoirs, The Downing Street Years, do not mention Monckton and refer to George Guise as her science advisor.

[25][26] Monckton stood unsuccessfully in four by-elections for vacant seats created by deaths among the 92 hereditary peers remaining in the Lords after the 1999 reforms.

He was highly critical of the way the Lords was reformed, describing the procedure in the March 2007 by-election, with 43 candidates and 47 electors, as "a bizarre constitutional abortion.

[41] Since 2008 he has toured Britain, Ireland, the US, China, Canada, India, Colombia, South Africa, and Australia delivering talks to groups related to the subject of Climate Change.

It concluded, "I am publishing this letter on the parliamentary website so that anybody who wishes to check whether you are a Member of the House of Lords can view this official confirmation that you are not.

[54] He does say a greenhouse effect exists,[55] and that carbon dioxide contributes to it, but claims there is no "causative link" from CO2-concentration to global average temperature.

On 18 October 2008 Monckton posted online "More in Sorrow than in Anger, Open letter from The Viscount Monckton of Brenchley to Senator John McCain about Climate Science and Policy" after U.S. presidential candidate John McCain made a campaign speech at a wind farm in which he stated his belief in anthropogenic climate change.

[72] Hadfield also showed how Monckton had misquoted the words of Kevin E. Trenberth, Murari Lau, Sir John Houghton, and Justice Michael Burton of the High Court of Justice,[73] in addition to falsely claiming that the International Astronomical Union had concluded at a 2004 symposium that the Sun was responsible for the majority of recent global warming.

[75] In 1988, Eddy Shah: Today and the Newspaper Revolution described Monckton as "a fervent, forthright and opinionated Roman Catholic Tory"[77] who has been closely associated with the "New Right" faction of the Conservative Party.

[78] In 1997, Monckton criticised works at the Fotofeis (the Scottish International Festival of Photography) and Sensation as "feeble-minded, cheap, pitiable, exploitative sensationalism perpetrated by the talent-free and perpetuated by over-funded, useless, muddle-headed, middle-aged, pot-bellied, brewer's-droopy quangoes which a courageous Government would forthwith cease to subsidise with your money and mine.

Every member of the population should be blood-tested every month ... all those found to be infected with the virus, even if only as carriers, should be isolated compulsorily, immediately, and permanently."

The article concluded that current Western sensibilities would not allow this standard protocol for containing a new, fatal and incurable infection to be applied: therefore, he said, many would needlessly die.

[80] Monckton appeared on the BBC's Panorama programme in February 1987 to discuss his views and present the results of an opinion poll that found public support for his position.

[78] Monckton has since stated "the article was written at the very outset of the AIDS epidemic, and with 33 million people around the world now infected, the possibility of [quarantine] is laughable.

[81] Monckton returned to the subject of homosexuality in a November 2014 article for the WorldNetDaily website describing the campaign of Councillor Rosalie Crestani in the City of Casey, near Melbourne, Australia.

[82] "Now, I'm not sure where Viscount Monckton is getting his statistics," wrote UKIP leader Nigel Farage in The Independent, "but to frame these comments as he has is both deeply offensive and fundamentally wrong.