Business Green: Australia’s Green Party today signed a deal formalising their support for Julia Gillard’s Labor Party should the prime minister form the next government – in exchange for the creation of a dedicated climate change committee tasked with establishing a price on carbon. The deal gives Labor 73 seats in the 150 member lower house, bringing the party level with the Liberal-led coalition, but still three short of the majority required to form a government. Greens leader Bob Brown …