Federal Liberal MP Craig Kelly is one of Australia's most influential politicians on Facebook, often scoring far higher levels of engagement than either Prime Minister Scott Morrison or Opposition Leader Anthony Albanese.

Mr Kelly – who denies the link between human activity and climate change, and made headlines last week after a combative interview on British breakfast television – uses his Facebook page to question climate science and spruik the coal industry on a daily basis.

Most weeks, Liberal MP Craig Kelly has higher engagement on his Facebook page than the Prime Minister. Credit:James Brickwood

Although the backbench MP has only 38,000 "fans" on the social media platform, compared to 231,000 for Mr Morrison and 124,000 for Mr Albanese, he regularly outperforms both men on engagement – particularly the number of people sharing his content.

Since July 1, there have been 1.33 million interactions involving Mr Kelly's page, compared to 1.26 million for Mr Morrison and 720,000 for Mr Albanese. Mr Kelly regularly outperforms the Prime Minister, and there have only been three weeks since July 1 when the Opposition Leader had more interactions than Mr Kelly.