Almost 300 high-profile firms sign statement backing introduction of controversial carbon levy
The controversial tax has created uncertainty for business, divided opinion and slashed government approval
Just under 300 companies will pay A$23 levy from July compared to 500 originally envisaged
Launch of carbon trading in July offers huge opportunities for UK companies, says business advisory body
Gillard: 'Today Australia has a price on carbon as the law of our land'
Opposition leader makes 'blood oath' to repeal controversial carbon tax
New green taxes in China and Australia are part of an accelerating trend
Country set for carbon trading from 2015 as Green and independent MPs support prime minister Julia Gillard's proposals
Treasury modelling of A$23-a-tonne levy shows just 0.1 per cent annual cut in household earnings
US official reiterates doubts over protocol's future as Australia and Norway call for delay to final international treaty