An extraordinary row has broken out between Labor and the Greens with opposition backbencher Pat Conroy describing a Greens Senator "disgusting" and "offensive" for using the bushfires to politically attack his opponents.

The row was sparked when Greens Senator Jordon Steele-John lashed out at the major parties on Twitter for kowtowing to "their corporate mates" on global warming.

He has since posted follow-up tweets labelling his political opponents "climate criminals".

The 24-year old was not in the parliament at the time when his Greens party combined with the Coalition to vote down the emissions trading scheme put forward by former Prime Minister Kevin Rudd in 2009.