Former Australian Finance Minister and now Secretary-General of the Organisation for Economic Co-operation and Development (OECD) Mathias Cormann has called for the world to adopt a consistent global carbon price. Speaking to ABC radio on Wednesday Cormann said that if the world had a globally applied comprehensive carbon tax it would be the most efficient way to get to net zero by 2050. “Well, I have always been of the view that if we had a globally sufficiently comprehensive and consistently applied carbon price that would be the most efficient way to get to global net zero by 2050,” he said. As part of the Coalition government in 2014, Cormann, vigorously opposed the Labor Party’s carbon tax in 2014, which the Abbott government revoked. Cormann told ABC’s Fran Kelly that although Australia had a carbon tax under the Labor Gillard government, “there wasn’t an appropriately comprehensive global agreement to price emissions” occurring …