A carbon tax is an environmental tax levied on the carbon content of fuels. It is a form of carbon pricing. Carbon is present in every hydrocarbon fuel (coal, petroleum, and natural gas) and is released as carbon dioxide (CO₂) when they are burnt. In contrast, non-combustion energy sources—wind, sunlight, hydropower, and nuclear—do not convert hydrocarbons to CO₂. CO₂ is a heat-trapping "greenhouse" gas. Scientists have pointed to the potential effects on the climate system of releasing greenhouse gases (GHGs) into the atmosphere (see scientific opinion on global warming). Since GHG emissions caused by the combustion of fossil fuels are closely related to the carbon content of the respective fuels, a tax on these emissions can be levied by taxing the carbon content of fossil fuels at any point in the product cycle of the fuel.

Carbon taxes offer a potentially cost-effective means of reducing greenhouse gas emissions. From an economic perspective, carbon taxes are a type of Pigovian tax. They help to address the problem of emitters of greenhouse gases not facing the full (social) costs of their actions. Carbon taxes are a regressive tax, in that they disproportionately affect low-income groups. The regressive nature of carbon taxes can be addressed by using tax revenues to favour low-income groups.

Michael Coren (born January 15, 1959) is an English-Canadian columnist, author, public speaker, radio host and television talk show host. He hosted the television talk show The Michael Coren Show on the Crossroads Television System from 1999 to 2011 when he moved to the Sun News Network to host an evening talk show, The Arena with Michael Coren. He has also been a long-time radio personality, particularly on CFRB radio.

He has written more than ten books, including biographies of G.K. Chesterton, H. G. Wells, Arthur Conan Doyle, and C. S. Lewis. His latest book, Why Catholics are Right, was published in 2011.

Coren was born in Essex, England. After obtaining a degree in politics from Nottingham University, he moved from the UK to Canada in 1987. For several years, he was a columnist for Frank and then The Globe and Mail, before he began syndicated columns for the Financial Post and Sun Media in 1995. Following his departure from Frank, he became a favourite target of that publication, culminating in a spoof ad contest to "deflower" Michael Coren (a nod to Frank's notorious "Deflower Caroline Mulroney" contest, and a satirical jab at Coren's conservative leanings.) Coren had also been a favorite target of Frank back in the days before he began writing for them. Coren took exception to being labelled a "literary prostitute" during a 1994 interview.

Julia Eileen Gillard (born 29 September 1961) is the 27th and current Prime Minister of Australia, in office since 24 June 2010.

Gillard was born in Barry, Wales and migrated with her family to Adelaide, Australia in 1966, attending Mitcham Demonstration School and Unley High School. In 1982 Gillard moved to Melbourne. She graduated from the University of Melbourne with Bachelor of Arts and Bachelor of Laws degrees in 1986. In 1987, Gillard joined the law firm Slater & Gordon working in industrial law, before entering politics.

Gillard was elected at the 1998 federal election to the House of Representatives seat of Lalor, Victoria, for the Australian Labor Party. Following the 2001 federal election, Gillard was elected to the shadow cabinet with the portfolios of Population and Immigration. The Reconciliation and Indigenous Affairs and the Health portfolios were added in 2003. In December 2006, Kevin Rudd was elected Labor leader and Leader of the Opposition, with Gillard as deputy leader.

Anthony John "Tony" Abbott (born 4 November 1957) is the Leader of the Opposition in the Australian House of Representatives and federal leader of the centre-right Liberal Party of Australia. Abbott has represented the seat of Warringah since the 1994 by-election.

Prior to entering the Australian Parliament, Abbott studied for a Bachelor of Economics and a Bachelor of Laws at Sydney University and for a Master of Arts as a Rhodes Scholar at Oxford University. He later trained as a seminarian and worked as a journalist, business manager, political advisor and Executive Director of Australians for Constitutional Monarchy. Abbott has also been an author, ultramarathon runner and member of the New South Wales Rural Fire Service.

Abbott served in the Howard Government as Parliamentary Secretary to the Minister for Employment, Education, Training and Youth Affairs from 1996-1998 and Minister for Employment Services from 1998-2001. He joined the Howard Cabinet in 2001 as Minister for Employment, Workplace Relations and Small Business. Following the 2001 Election, he took on the additional roles of Leader of the House of Representatives and Minister Assisting the Prime Minister for the Public Service. In 2003 he became Minister for Health and Ageing , retaining this position and his role as Leader of the House until the defeat of the Howard government at the 2007 federal election.