Business Green: The price of carbon in the EU emissions trading scheme (ETS) slipped more than 2.5 per cent to EUR13.35 (£12.21) yesterday, after a European court overturned European Commission caps on the amount of carbon Poland and Estonia are permitted to emit between 2008 and 2012. The controversial decision opens the way for the court to make similar rulings on other countries’ emission caps and, according to experts, could have devastating consequences for the high-profile cap-and-trade …