Though I grew up in the United States, I’ve spent the majority of my adult life in France – which means that every trip “back” across the Atlantic has become a moment of curiosity and culture shock. Most recently, the shock was over the sheer prevalence of plastics in American daily life. In Paris, and elsewhere in Europe, plastics are clearly on their way out and paper is in. The standard takeaway cup in coffee shops, juice bars and cafes serving hipster smoothies is paper, and when there is a straw, it’s paper as well (or some other biodegradable non-plastic...