Bad news for environmentally conscious pet owners: cats’ and dogs’ eating habits are responsible for dumping as many as 64 million tons of greenhouse gases into the atmosphere every year — roughly the equivalent of driving over 13 million cars. That’s due to all the meat our furry friends gobble down, according to new research. There are more than 163 million dogs and cats in the US, and they just love to eat. In fact, cats and dogs in the US consume about 19 percent as many calories as people do in the US, or about as much as 62...