Business Green: The Confederation of British Industry (CBI) will today issue a new report voicing concern at government plans to impose a new per-plane tax on flights in and out of the UK, arguing that the most effective means of curbing aviation emissions is through a global cap-and-trade scheme. The report, entitled Green Skies Ahead: Creating a Low-carbon Aviation Industry, warns that without a global emissions pricing scheme for aviation there is a risk that any national levies will simply …