A: Plastic bags are incredibly prevalent in our lives. This is the result of our production trajectory and the fact that we think of manufacturing as linear as opposed to circular. Plastic bags are made from polyethylene, which is manufactured by means of petroleum + natural gas. Plastic bags take hundreds, if not thousands, of years to decompose, but they never fully biodegrade. Polyethylene has been linked to numerous health issues. It is estimated that roughly 1,000,000 bags are consumed per minute per year globally. None of those bags are biodegradable, and none of those bags are recyclable in a conventional recycling facility, and most of those bags end up as trash. ideally, refuse plastic bags whenever and wherever you can. if they appear in your life, don't throw them in the trash. While they are not recyclable in commercial facilities and you should not put them in your curbside recycling, there are receptacles at most grocery, department and big box stores (think target, walmart, etc) where you can discard your plastic bags. those pliable plastics are then taken to specialty facilities where they are turned into composite building materials, plywood, decking, pellets, etc. Ditch plastic bags entirely, or at least, dispose of them responsibly.