Key independent MP Tony Windsor has challenged industry leaders to come up with an alternative to the government's proposed carbon tax if they do not like it.BHP Billiton chief executive Marius Kloppers has warned that Australia's bid to put a price on carbon from next year - before other nations make a similar move - will be a 'dead weight' on high-polluting industries.Mr Kloppers, who this week appeared with Prime Minister Julia Gillard at a Beijing function to launch scholarships, last year backed Australia leading the way on a carbon price.But he told The Australian newspaper that 'in the absence of a global scheme, any carbon taxes you impose...
