BRUSSELS (Reuters) - After all-night negotiations, the European Union struck a political deal on Tuesday to impose a carbon dioxide emissions tariff on imports of polluting goods such as steel and cement, a world-first scheme aiming to support European industries as they decarbonise. Negotiators from EU countries and the European Parliament reached a deal at around 5am in Brussels, on the law to impose CO2 emissions costs on imports of iron and steel, cement, fertilisers, aluminium and electricity. Companies importing those goods into the EU will be required to buy certificates to cover their embedded CO2 emissions. The scheme is...