PlumMtoWikipedia@lemmy.worldEnglish·19 days agoPurple Earth hypothesis(en.wikipedia.org)external-linkarrow-up1112arrow-down10message-square15fedilink
arrow-up1112arrow-down1external-linkPurple Earth hypothesis(en.wikipedia.org)PlumMtoWikipedia@lemmy.worldEnglish·19 days agomessage-square15fedilink
minus-squarelefaucetEnglisharrow-up18arrow-down0·19 days agolinkfedilinkThis is the coolest thing I’ve learned all month!
minus-squareThorry84Englisharrow-up11arrow-down0·19 days agolinkfedilinkIt probably even happened multiple times, so Earth went from purple to green, back to purple and then green again. And there’s also been periodes where the Earth was mostly covered in ice, making it appear white, called Snowball Earth. Geo Girl on YouTube has excellent videos about this topic: https://www.youtube.com/watch?v=5sQPcpsOWzg PBS Eons is a good source for a high level overview as well: https://www.youtube.com/watch?v=IIA-k_bBcL0
This is the coolest thing I’ve learned all month!
It probably even happened multiple times, so Earth went from purple to green, back to purple and then green again. And there’s also been periodes where the Earth was mostly covered in ice, making it appear white, called Snowball Earth.
Geo Girl on YouTube has excellent videos about this topic: https://www.youtube.com/watch?v=5sQPcpsOWzg PBS Eons is a good source for a high level overview as well: https://www.youtube.com/watch?v=IIA-k_bBcL0