Long Story Shorts: What is Ocean Stratification?

array(10) { [0]=> object(stdClass)#4177 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "OVWZyDz--30" ["related_video_title"]=> string(44) "Climate change: what is ocean acidification?" ["posted_time"]=> string(21) "2 года назад" ["channelName"]=> string(13) "The Economist" } [1]=> object(stdClass)#4150 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "YTT_Tlr8Dd8" ["related_video_title"]=> string(30) "The Secret Life of Brine Pools" ["posted_time"]=> string(21) "3 года назад" ["channelName"]=> string(19) "Natural World Facts" } [2]=> object(stdClass)#4175 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "nQ0Wb6JYHUo" ["related_video_title"]=> string(42) "Limnology - Lake stratification and mixing" ["posted_time"]=> string(21) "4 года назад" ["channelName"]=> string(12) "Hilary Dugan" } [3]=> object(stdClass)#4182 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "dpvd9FensT8" ["related_video_title"]=> string(63) "This Will Be My Most Disliked Video On YouTube | Climate Change" ["posted_time"]=> string(19) "1 год назад" ["channelName"]=> string(6) "Astrum" } [4]=> object(stdClass)#4161 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "TxdiU3LJlZ8" ["related_video_title"]=> string(60) "Ocean layering explained - Scripps Institute of Oceanography" ["posted_time"]=> string(20) "13 лет назад" ["channelName"]=> string(13) "TheAspietunes" } [5]=> object(stdClass)#4179 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "ovl_XbgmCbw" ["related_video_title"]=> string(48) "Can the ocean run out of oxygen? - Kate Slabosky" ["posted_time"]=> string(21) "4 года назад" ["channelName"]=> string(6) "TED-Ed" } [6]=> object(stdClass)#4174 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "2WNPmecZlS8" ["related_video_title"]=> string(51) "How Climate Change Affects Ocean Life | Compilation" ["posted_time"]=> string(21) "3 года назад" ["channelName"]=> string(7) "SciShow" } [7]=> object(stdClass)#4184 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "N6DW31S_oyI" ["related_video_title"]=> string(93) "Mega Hits 2025 🌱 The Best Of Vocal Deep House Music Mix 2025 🌱 Summer Music Mix 2025 #4" ["posted_time"]=> string(27) "5 месяцев назад" ["channelName"]=> string(11) "Helios Deep" } [8]=> object(stdClass)#4160 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "KpCVQcSqB0Q" ["related_video_title"]=> string(106) "[4K] SARDINIA 🇮🇹 Sardegna Drone Aerial, The Miracle Island of Italy | 4 Hour Ambient Relaxation Film" ["posted_time"]=> string(25) "3 месяца назад" ["channelName"]=> string(17) "Polychronis Drone" } [9]=> object(stdClass)#4178 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "_Z8k-XIiNU8" ["related_video_title"]=> string(19) "In-lake Ecology 101" ["posted_time"]=> string(19) "6 лет назад" ["channelName"]=> string(15) "Extension Lakes" } }