Contra Costa Times: Drinking a bottle of water might seem innocent enough, but each bottle has a downside many people overlook — a contribution to global warming. That’s because bottles create carbon dioxide, the most common greenhouse gas, when they are made, trucked to a store and disposed of in a landfill or recycled. Their impact can quickly add up. "Bottled water is an energy-intensive luxury for Americans," said Peter Gleick, president of the Pacific Institute, an environmental …