The European Union launched on Sunday the first phase of the world's first system to impose CO2 emissions tariffs on imported steel, cement and other goods as it tries to stop more polluting foreign products from undermining its green transition.

BRUSSELS, Oct 1 (Reuters) - The European Union launched on Sunday the first phase of the world's first system to impose CO2 emissions tariffs on imported steel, cement and other goods as it tries to stop more polluting foreign products from undermining its green transition.