EU carbon border tariff unpopular, but needed

On Oct 1, the European Union launched one of its most ambitious climate policies yet. It began the pilot phase of

a scheme that will tax carbon-intensive goods imported from outside the bloc.

The Carbon Border Adjustment Mechanism (CBAM) focuses on imports that have a significant carbon footprint from their production.

The EU is doing this because many industries, from steel- and cement-making to power generation and fertiliser production, are big polluters, whose emissions are driving climate change.