When I lived in Northern California, I used to volunteer for beach cleanup every few weekends. Over a couple of hours, I would personally pick up 5-20 pounds of trash along the beach. The most numerous types of trash were: hundreds of candy wrappers, dozens of cigarette butts, and dozens and dozens of plastic straws. Most of the straws were from fast food restaurants, but a lot were from people eating food at the beach then throwing away the straws. It's kinda disgusting.
The next time you visit a beach in Northern California and gaze at the powerful waves of the Pacific crashing into the clean, sandy beach, realize that it's an illusion. The beach is basically a garage dump. It only looks pristine because dozens of volunteers pick up hundreds of plastic straws from the beach, every weekend.