Katie Okamoto, Wirecutter's sustainability editor, dives into the pervasive issue of microplastics—from their origins in everyday products to their potential health risks. She shares practical tips for reducing exposure, especially in drinking water, and advocates for mindful choices in reducing plastic use. The discussion emphasizes easy, impactful changes like choosing glass containers and water filters. With humor and insight, Katie encourages listeners to balance personal actions with broader systemic solutions against plastic pollution.