At the same time, William is processing an unexpected tragedy.

The royal recently shared that he lost a close friend the same day the docuseries debuted.

William shared a sentimental message onTwitter, which is a rare occurrence.

Prince William posing

The organization expressed its condolences, writing, “Mark Jenkins was a once-in-a-generation conservationist.

“Conservation was in Mark’s blood,” the organization observed.

Like the Jenkins family, Prince William’s environmentalism was influenced by his father.

King Charles and Prince William looking serious

King Charles III made his first environmental awareness speech in 1970, per the Royal Family’sYouTubechannel.

In addition,National Geographicnotes that, in 2009, Charles championed preserving rainforests in Guyana.