Photo: Zivica Kerkez (Shutterstock) When you pick up your dog’s poop, you do everyone a favor, but if you want to do the environment a favor as well you’ll need to use the right poop bag. A regular old plastic bag can pollute oceans, choke animals, and poison soil , so you probably use one listed as “biodegradable.” But not all bags are what they seem. Here’s how you can choose the right type of bag for your dog’s poop. Read biodegradable bags carefully When a product is biodegradable, it means the material is made to break down and return to the earth, hopefully without harming our water, soil, and air. Unfortunately, though, “biodegradable” has its limitations. Some biodegradable products must be disposed of in a particular way; if they aren’t, they may not return to the earth the way we think, and that includes our dog’s poop bags . Use compostable bags over biodegradable Choosing a different bag may be the easiest way to help the environment. Use a compostable bag instead of a biodegradable one, as compostable bags decompose while returning nutrients back to the earth . They’re usually made of food products like potato starch and other plant materials, which make them good for proper decomposition. Marine biologist Richard Thompson conducted a study at Plymouth University on the difference between biodegradable and compostable, reporting that “in the underwater environment, the compostable bag disappeared completely within three months,” while the regular plastic bags and biodegradable ones were […]