 The dangers of microplastics are still being examined, but some environmental groups say their ingestion has been proven to be dangerous, especially in small children. Sherry Preston, ABC News. Traffic and weather next. Hey, if you're listening to me right now, I have one thing every business needs most. Attention. Think about it. We swipe and scroll past stuff all day, but when we're driving, cooking, working out, we're also listening. That's the magic of audio at iHeart.