WSJ’s Fashion Director Rory Satran explains how Shein-- now valued at $100 billion-- rose to dominate the fast-fashion industry via social media, and why it's now facing intense criticism from sustainable shoppers.To learn more about the climate impacts of fast fashion and ways to mitigate them, be sure to check out our episode Fast Fashion’s Dirty Little Secret (Hint: It’s Oil).Check out our Calls to Action archive for all of the actions we've recommended on the show. Send us your ideas or feedback with our Listener Mail Form. Sign up for our newsletter here. And follow us on Twitter and Instagram. Learn more about your ad choices. Visit podcastchoices.com/adchoices