Rising demand for air cargo enabled Virgin Atlantic Cargo to push up yields in the first quarter with sales rising 36 per cent, driven by a 25 per cent increase in volumes, the company said. Virgin Cargo’s director, John Lloyd warned though, that the recovery could be destabilised by excess capacity in the market. “The challenge now, with capacity rising again in many markets, is to ensure the industry maintains and builds upon this demand by taking sensible decisions on capacity.”