3 ms·

> 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 Qat

• lproven 4y ago
  Yes... 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.