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It is vital to consider proportion: 2/3 of the Earth is ocean. These new seas would be absolutely tiny by comparison. The extra water vapour added to the atmosp
by lproven 4y ago
It is vital to consider proportion: 2/3 of the Earth is ocean. These new seas would be absolutely tiny by comparison. The extra water vapour added to the atmosphere would be a rounding error. Unfortunately the same applies to the amount of sea level rise they offset: it too would be a rounding error, a fraction of a percent.
- lostlogin 3y ago> Unfortunately the same applies to the amount of sea level rise they offset: it too would be a rounding error, a fraction of a percent. Flooding Flood the Qattara Depression would lower the sea level by 3mm according to the article.
- lproven 3y agoYes... which is less than the current annual increase of 3.4mm: https://sealevel.nasa.gov/faq/8/is-the-rate-of-sea-level-rise-increasing/ https://sealevel.nasa.gov/faq/8/is-the-rate-of-sea-level-ris... The West Anarctic Ice Sheet alone will cause ~3.3m rise when it collapses. https://www.carbonbrief.org/guest-post-how-close-is-the-west-antarctic-ice-sheet-to-a-tipping-point/ https://www.carbonbrief.org/guest-post-how-close-is-the-west... Note, NOT melts; just when it breaks up and floats away, still frozen. That one ice sheet, currently cracking, is over half resting on rock that is way below sea level. Some is 2000m under sea level. It doesn't need to melt, it just needs to break off and float away. That would cause a 3.5-5m *depending on ow much floated) increase in mean sea level, worldwide, in approximately 12 days. That is over 1000x time the reduction caused by flooding the Qattara depression. Or 0.1% -- or as I said, a fraction of a per cent.