It's not. It's actually accelerating.
https://en.wikipedia.org/wiki/Sea_level_rise
Current sea level rise is about 3 mm/year worldwide. According to the US National Oceanic and Atmospheric Administration (NOAA), "this is a significantly larger rate than the sea-level rise averaged over the last several thousand years", and the rate may be increasing.[2] This rise in sea levels around the world potentially affects human populations in coastal and island regions[3] and natural environments like marine ecosystems.[4]
Between 1870 and 2004, global average sea levels rose 195 mm (7.7 in), 1.46 mm (0.057 in) per year.[5] From 1950 to 2009, measurements show an average annual rise in sea level of 1.7 ± 0.3 mm per year, with satellite data showing a rise of 3.3 ± 0.4 mm per year from 1993 to 2009,[6] a faster rate of increase than previously estimated.[7] It is unclear whether the increased rate reflects an increase in the underlying long-term trend.[8]
The 3.2 mm/year is up from 1.7 mm/year. You'll need more than a few tenths to undo that.
I would suspect the slight slowdown (though still climbing rapidly) might have something to do with this
NASA Satellites Detect Pothole on Road to Higher Seas - NASA Jet Propulsion Laboratory
NASA Satellites Detect Pothole on Road to Higher Seas
Edited: 2011-08-23 Dallas Masters's blog Share
Our colleagues at JPL have also been interested in how the global mean sea level is affected by the ENSO (i.e., El Niño and La Niña). They find that GRACE measurements helped to identify the distribution of abnormally high rainfall over land resulting from the recent strong La Niña. This temporary transfer of large volumes of water from the oceans to the land surfaces also helps explain the large drop in global mean sea level. But they also expect the global mean sea level to begin climbing again.
An Update from NASA's Sea Level Sentinels:
Like mercury in a thermometer, ocean waters expand as they warm. This, along with melting glaciers and ice sheets in Greenland and Antarctica, drives sea levels higher over the long term. For the past 18 years, the U.S./French Jason-1, Jason-2 and Topex/Poseidon spacecraft have been monitoring the gradual rise of the world's ocean in response to global warming.
While the rise of the global ocean has been remarkably steady for most of this time, every once in a while, sea level rise hits a speed bump. This past year, it's been more like a pothole: between last summer and this one, global sea level actually fell by about a quarter of an inch, or half a centimeter.
So what's up with the down seas, and what does it mean? Climate scientist Josh Willis of NASA's Jet Propulsion Laboratory, Pasadena, Calif., says you can blame it on the cycle of El Niño and La Niña in the Pacific. [Read more...]
The 3.2 mm/year is up from 1.7 mm/year. You'll need more than a few tenths to undo that.
I would suspect the slight slowdown (though still climbing rapidly) might have something to do with this
NASA Satellites Detect Pothole on Road to Higher Seas - NASA Jet Propulsion Laboratory
NASA Satellites Detect Pothole on Road to Higher Seas
Edited: 2011-08-23 Dallas Masters's blog Share
Our colleagues at JPL have also been interested in how the global mean sea level is affected by the ENSO (i.e., El Niño and La Niña). They find that GRACE measurements helped to identify the distribution of abnormally high rainfall over land resulting from the recent strong La Niña. This temporary transfer of large volumes of water from the oceans to the land surfaces also helps explain the large drop in global mean sea level. But they also expect the global mean sea level to begin climbing again.
An Update from NASA's Sea Level Sentinels:
Like mercury in a thermometer, ocean waters expand as they warm. This, along with melting glaciers and ice sheets in Greenland and Antarctica, drives sea levels higher over the long term. For the past 18 years, the U.S./French Jason-1, Jason-2 and Topex/Poseidon spacecraft have been monitoring the gradual rise of the world's ocean in response to global warming.
While the rise of the global ocean has been remarkably steady for most of this time, every once in a while, sea level rise hits a speed bump. This past year, it's been more like a pothole: between last summer and this one, global sea level actually fell by about a quarter of an inch, or half a centimeter.
So what's up with the down seas, and what does it mean? Climate scientist Josh Willis of NASA's Jet Propulsion Laboratory, Pasadena, Calif., says you can blame it on the cycle of El Niño and La Niña in the Pacific. [Read more...]
Funny deal bro.. That graph fits to a line WITH NO ACCELERATION rather perfectly.. And the big dip is because now satellites can better include transient regional changes. But thats not why the Warmers can claim acceleration. Satellites are the reason... The leap from 1,8 to 3 mm per yr coincided with the shift from tide gauges to sat back a couple decades ago now.. One of the artifacts of not having great middle ocean coverage in the old system... Its been ABUSED as a propaganda point. There is no real evidence of acceleration , just a jump in measurement baselines.
1) Human civilization has existed for 10,000 years, not 3 billion. We would like to continue to have the sort of weather that has predominated during that period if you please.
2) Warmers HAVE been looking further back than the last 50 years. You just might recall THIS, which goes back 400 TIMES that far and was one of the keystones in the development of AGW theory:
3) Scientists have been doing paleoclimate reconstructions for decades now and their conclusions are that this is most definitely NOT a normal climate change for this planet. See Shakun et al 2012 and Marcott et al 2013 if you'd like to see the particulars.
1) Human civilization has existed for 10,000 years, not 3 billion. We would like to continue to have the sort of weather that has predominated during that period if you please.
2) Warmers HAVE been looking further back than the last 50 years. You just might recall THIS, which goes back 400 TIMES that far and was one of the keystones in the development of AGW theory:
3) Scientists have been doing paleoclimate reconstructions for decades now and their conclusions are that this is most definitely NOT a normal climate change for this planet. See Shakun et al 2012 and Marcott et al 2013 if you'd like to see the particulars.
Answers:
1) your desire to maintain a nice constant temperature throughout human existence is an extreme fantasy. It has never happened and never will.
2) 2000 years is still cherry picking. It's less that the blink of an eye geologically.
3) there is a record of climate going back hundreds if thousands of years locked away in glacier ice. It quite clearly shows that this is not the warmest nor is there anything unusual about it.
1) Human civilization has existed for 10,000 years, not 3 billion. We would like to continue to have the sort of weather that has predominated during that period if you please.
2) Warmers HAVE been looking further back than the last 50 years. You just might recall THIS, which goes back 400 TIMES that far and was one of the keystones in the development of AGW theory:
3) Scientists have been doing paleoclimate reconstructions for decades now and their conclusions are that this is most definitely NOT a normal climate change for this planet. See Shakun et al 2012 and Marcott et al 2013 if you'd like to see the particulars.
Answers:
1) your desire to maintain a nice constant temperature throughout human existence is an extreme fantasy. It has never happened and never will.
2) 2000 years is still cherry picking. It's less that the blink of an eye geologically.
3) there is a record of climate going back hundreds if thousands of years locked away in glacier ice. It quite clearly shows that this is not the warmest nor is there anything unusual about it.
1) Temperatures will very soon exceed any values they have reached since the dawn of human civilization and they will do so at a rate that has not been seen for 65 million years. Humanity will have inadequate time to adjust and the suffering and the cost will be greater than anything in human history. The fantasy is that this is "normal" and that it will not harm us.
2) 2,000 years is an eye-blink geologically speaking. Fortunately, neither climate nor human-history are geological processes. Be that as it may, my point was simply to put the lie to your 50 year contention, which by your lack of pertinent response, I assume you accede.
3) For the umpteenth time human civilization has only been around a hundred centuries, not a thousand, not ten thousand. THOSE are the climatic conditions under which humanity throve. Those cores do show two rather critical things: nowhere in the 800,000 years of the Vostok cores do temperatures rise at the rate at which they have risen this last 150 years and nowhere in those cores have CO2 levels EVER attained their CURRENT VALUE.
