Three Stories:

1. Sniffing Dogs are Being Trained to Detect Asymptomatic and Early Onset Infections of COVID-19 in Humans
2. Nitrous Oxide is on the Rise Globally, due to Increased Industrial Agricultural Production
3. Super Enzymes are Being Engineered to Help Digest Plastics Quickly

Sources:
https://time.com/5898049/covid-19-sniffing-dogs
https://www.sciencedaily.com/releases/2020/10/201007123131.htm https://www.sciencedaily.com/releases/2020/09/200928152913.htm