CellBioGuy comments on Open thread, Nov. 02 - Nov. 08, 2015 - Less Wrong

4 Post author: MrMind 02 November 2015 10:07AM

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Comment author: CellBioGuy 07 November 2015 09:57:56PM *  3 points [-]

http://www.worldviewofglobalwarming.org/images11/SeaLevelRiseRateChart2010.jpg

This is the global mean. Rise measured at any given actual shoreline will be different and sometimes even falling, due to local geology altering elevations of land at not-dissimilar rates in some areas (especially areas where post-glacial rebound is still occurring) as well as thermal expansion being uneven.

Comment author: Good_Burning_Plastic 08 November 2015 10:40:02AM 1 point [-]

Was something weird happening in the 1920s or is it just an optical illusion due to the black lines?

Comment author: CellBioGuy 12 November 2015 02:26:38AM 0 points [-]

I think you'd see similar anomalies in 1880 and 1985 stand out with similar lines.

Comment author: Lumifer 08 November 2015 05:32:34AM 0 points [-]

Yes. But the sea levels have been rising continuously since the time of the last glacial maximum. 10,000 years ago they were rising at a rather more dramatic rate, too.

Comment author: CellBioGuy 08 November 2015 09:29:34AM *  1 point [-]

Yep! My favorite bit of what went on during the end of the last glaciation is the way that it happened unevenly, a sedate constant flow of water from ice to the oceans interrupted by centuries here and there where sea level rose by at least 2-5 centimeters a year. Presumably that's what happens once an ice sheet becomes unstable and pieces of them collapse quickly and nonlinearly.

Comment author: Lumifer 09 November 2015 04:19:35PM 1 point [-]

That was one of those "interesting times to live in"? Still it's peanuts compared to the mother of all floods :-)