NOVA: Season 49, Episode 1 Arctic Sinkholes (PBS 2022 US)(ENG/SUB ENG)

PBS: NOVA Season 49, Episode 1 «Arctic Sinkholes » Aired: Jan 12, 2022 (United States) 54 min | Science, Nature, Documentary | TV Series (1974 - now) (ENG/SUB ENG) #Nature@zdenek1964 #Documentary #Science@zdenek1964 #PBS@zdenek1964 #NOVA@zdenek1964