Financial Times: High quality global journalism requires investment. Please share this article with others using the link below, do not cut & paste the article. See our Ts&Cs and Copyright Policy for more detail. Email ftsales.support@ft.com to buy additional rights. http://www.ft.com/cms/s/0/5032080c-8e28-11e3-98c6-00144feab7de.html#ixzz2sgcALjxe The Australian government said it would repeal the countrys carbon tax in July, saying new data on greenhouse gas emissions proved the controversial levy introduced by...