The European Union is considering imposing an import tax on a range of products from countries with low standards for controlling greenhouse gas emissions. The initiative is part of a series of measures to be discussed in July that aim to align the eurozone economy with stricter emissions reduction targets for 2030. The tax would affect imports of products such as steel, cement, and aluminum, which require high levels of energy consumption in their manufacturing processes. The tax would be based on the carbon emission costs faced by European producers. The proposal calls for importers of these products to purchase special certificates linked to the EU Emissions Trading System. The measure would take effect after a three-year transition period.