Birdwatch Note Rating
2023-08-10 09:07:49 UTC - HELPFUL
Rated by Participant: C34AB5C9CA1C24DC3ED9E94A1023A52154A2B5D82C3841FC475F1F4E4A0B528A
Participant Details
Original Note:
The glacier grows steadily, then suddenly breaks off ~10km at a time. So its length is a sawtooth function. Drawing a straight line between 2 cherry-picked points is not a good way to make an average. "Petermann is generally thinning, retreating, and its flow is accelerating." https://earthobservatory.nasa.gov/images/151358/retreat-at-petermann-glacier
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