Please mark this day as a significant historical event: Jason Momoa [1] has shaved for the first time in seven years. His sexy scruff was a key staple for many of his characters, like Khal Drogo on Game of Thrones and Aquaman. Yet, on Wednesday, the 39-year-old actor released a video on YouTube and ceremoniously ditched his famous beard for a good cause.

Momoa made a dramatic change to his physical appearance while talking about the benefits of recycling, a lasting environmental change. He emphasized the importance of using "infinitely recyclable" aluminum instead of plastic, in order to leave a better world for his own kids, others' kids, and the world. Watch the full video above to hear Momoa's full message — and to pay your respects to his beard.