Denmark is the centre of a comprehensive tax scam involving CO2 quotas, in which the cheats exploit a so-called ‘VAT carrousel’, reports Ekstra Bladet newspaper. Police and authorities in several European countries are investigating scams worth billions of kroner, which all originate in the Danish quota register. The CO2 quotas are traded in other EU countries. Denmark’s quota register, which the Energy Agency within the Climate and Energy Ministry administers, is the largest in the world in terms of personal quota registrations. It is much easier to register here than in other countries, where it can take up to three...