Brazil, South Africa, India and China have voiced their opposition to plans for climate-related tariffs such as those currently being discussed by the European Union. The 27-nation EU is proposing a ‘carbon border adjustment mechanism’ that would place tariffs on goods from countries whose efforts to reduce greenhouse gas emissions are considered insufficient. The proposal is intended to prevent European manufacturers from being at a disadvantage compared to foreign rivals who don’t face similar climate rules as those in the EU.