Brussels, 29/09/2006 (Agence Europe) - On Thursday, the European Commission opened a formal investigation to examine whether Danish plans to grant CO2 tax exemptions to companies covered by the EU's Emissions Trading Scheme (EU ETS) are compatible with EC Treaty state aid rules. The Danish government wants to introduce an exemption from the national CO2 tax on fuel consumption for industrial activities covered by the EU ETS, granting full exemption to energy-intensive businesses covered by...