the beverage business could be in for more of a shakeup after pepsi bottling group proclaimed major changes in its core packaging after a difficult quarter. the somers, nybased bottling giant had a less thanstellar earnings period, where carbonated soft drink csd volumes continued to slide down 4 percent year to date, a symptom of the recent trend away from csd in both north america and europe. however, more surprisingly, the company&rsquos bottled water business also was down 6 percent in global case volume, an indicator that the bottled water boom may have peaked. the bottling group plans to lightweight more of its bottles, self manufacture more pepsi containers at its plants, and take steps to better maximize packaging efficiencies across its operations.