The cannabis industry is where the chemistry lab meets agriculture. Delta-8-THC is chemically derived and the hemp industry's fastest growing product. It has been popping up in smoke shops, CBD shops and even gas stations.Dr. Katelyn Kesheimer, a researcher at Auburn University and the Alabama Cooperative Extension System, joins the show to demystify Delta-8. We'll learn what it's made of, where it comes from, why it's so popular, and why science and the federal government are falling so far behind the cannabis industry.Email the show at ShortWave@NPR.org.