Why Are Ocean Levels Lower Today than 150 Years Ago?

Question

Ocean levels are more than one inch lower today than they were 165 years ago. If "global warming" was real and causing ice caps to melt, you would expect the oceans to be higher today.

Maybe global warming causes oceans to recede and to rise much like global warming causes the temperatures to increase and decrease.

What's your thoughts?

http://homepage.eircom.net/~gulufuture/future/weather02.htm

Isn't anyone looking at the link? It clearly shows sea levels receding. I'm not making this stuff up.

What reaction would the believers have if this mark was 30cm BELOW current sea level? Would they dismiss this mark as being un-scientific or proof that "global warming" was real?

I think I know that answer......

Answer 1

It is because climatologists are very smart people, the world is truly in debt to them because of their projections. You see climatologists are above the laws of nature, they need not show proof, they speak therefore it shall be one day. You just have to have faith that one day the sea level rise will be detectable by humanity.

EDIT:

Artic Sea levels falling
http://news.bbc.co.uk/2/hi/science/nature/5076322.stm

AND Pacific Sea Level

"In the early 1990s, scientists forecast that the coral atoll of nine islands - which is only 12ft above sea level at its highest point - would vanish within decades because the sea was rising by up to 1.5in a year. However, a new study has found that sea levels have since fallen by nearly 2.5in and experts at Tuvalu's Meteorological Service in Funafuti, the islands' administrative centre, said this meant they would survive for another 100 years. "

http://www.tmgnow.com/repository/global/sea_level.html

Answer 2

Yes you are right global arming makes the sea to sink is because fresh water is taking over the sea. Just like in Australia the lake was totally dry so if the north and south pole melt it will may cost the same problem as the lake in Australia? Did some one try a small experiment what is fastest liquid that dry out in normal weather like Australia or in Egypt?

Answer 3

that link does not show sea-levels receding, it shows that 150 years ago people didn't know how to measure things like "the mean depth of an OCEAN" I can't blame them, it's a big giant tricky thing. There could have been an earthquake that re-adjusted that lifted that section of the plate an inch. He could have measured it during a different tidal phase (did they even know about lunar tidal phases 150 years ago?)

We can't rely on 100+ year old information when trying to measure global changes, it's the same problem as the global warming crowd. 100 years ago, they didn't have the same abilities to collect planet-wide data that we do today, sure mabye the average temperature of a house in bostom has gone up a degree or 2 since benjamin franklin, but that's a few square feet at surface level...that's not a sign of GLOBAL warming. and even if it was, who can say he measured it correctly, or that his thermomiter was correctly calibrated.

Mabye the planet is warming, mabye it's cooling, we don't have enough long-term reliable data to say at this point.

Answer 4

I don't believe we understand this 'climate change' business in enough detail to even make claims about ocean level. You are right - in some parts of the world the ocean appears to be dropping whilst in other parts it looks like its rising. My thought (and the same reason why people think tiny island nations are being flooded by climate change whilst oceanfront cities don't have this problem) is that the actually height of the land above sea level is changing due to geological uplift. This is a relatively common phenomenon, and explains the different measurements. Some island nations who claim to be flooding are actually sinking!

Climate change may well be causing the ocean levels to rise on average, but we don't have enough conclusive data to affirm this. Anyone who says it's "definite" is a liar and a plague upon good science. But i think its 'likely' the globe is warming up.

Although no one has yet to explain to me why warm weather is bad!

Answer 5

You're exactly right. One mark on a rock being above the current sea level in one location means that ocean levels are now lower than 165 years ago.

Just like how 1934 was the hottest year globally because that was the case in the lower 48 United States and Helsinki.

Your scientific rigor astounds me. If only climate scientists would base their global temperature measurements on my thermostat (currently 78°F by the way - mark it down!), we could be assured that their research be of nearly as high quality as Jello arguments.

Answer 6

He measured "the mean level of the tides"

That has nothing to do with "ocean levels". You are taking the information out of context. The mean level of the tides in the Bay of Fundy are 20ft below high tide, does the mean the ocean has dropped 20 ft?

Don't argue things you have no clue about, it just makes you look foolish.

Answer 7

This is really bad

sea levels can change in one part of the world due to things like wind currents. The rock can change as others have mentioned. Dana is correct

also, there is no telling if this picture is taken at high tide, low tide, or what.

what this amounts to is more mindless nonsense from the denier movement. Stick with solar data, it's the best chance you got.

Answer 8

well you asked so here i go......i think that the thought of global warming as a threat to our future is just plain silly.....the media has manipulated evidence and scientists are becoming some sort of a joke now-a-days because of this and others just tell people what they want to hear, causing most of the world to live in state of fear.......though there have been changes in the climate and atmosphere, i think it is ridiculous for people to believe that mankind could ever have caused these changes....it would not be far fetched for me to say that humans have evolved or thousands of years to work with the world around us and make it a livable place for us......why can nature, in turn, not do the same thing.......i also feel that people look at global warming as a threat as if mankind will never make any technological advances from now until, their so-called dooms-day, technology is catching up, we do pollute and it would be wrong for us to not believe in this, but at the same time it is silly for one to think that our understanding of this will never advance for the better, because it already has and will continue in doing so, look at hybrid cars and coal energy plants that can break down their own byproduct to fuel the plant in turn......and if you really want to know what i feel about the notion that sea levels are rising, well i think that this is also not true, glaciers are not melting, they are getting colder, there is much evidence to show this,sea levels vary and will always be doing that, we have nothing to do with it........i would not be surprised if in a few years people will be crying 'ice age!!', as they did not to long ago......as previously said, Americans have no memory......

Answer 9

I looked at the link. Clearly you'd agree it's biased. And the result is based on one mark on a wall. Here's what some other people say, based on more serious data:

"Historical records show that sea level in San Francisco Bay has risen 18-20 cm (7 inches) over the past 150 years. "

San Francisco Bay Conservation and Development Commission

http://www.bcdc.ca.gov/index.php?cat=56

"Here, we extend the reconstruction of global mean sea level back to 1870 and find a sea-level rise from January 1870 to December 2004 of 195 mm, a 20th century rate of sea-level rise of 1.7 ± 0.3 mm yr−1 and a significant acceleration of sea-level rise of 0.013 ± 0.006 mm yr−2."

GEOPHYSICAL RESEARCH LETTERS, VOL. 33, L01602, doi:10.1029/2005GL024826, 2006

http://www.csiro.au/news/ps13f.html

http://environment.newscientist.com/data/images/ns/cms/dn11083/dn11083-2_426.jpg

(Graph)

This is the best data I've found, satellite data:

http://sealevel.colorado.edu/

Honestly, which of these sources do you find more credible? One mark on a wall, or scientifically measured data with many data points? Note that the various sources I've listed have pretty similar results, too.

Answer 10

Ah, Mr. Jello.

Sea levels are not lower now than 150 years ago. Sea levels have been continually increasing since the last ice age, and no one seriously disputes this.

On the other hand, it's not that easy to measure the increase in sea level---it's a very slow process whose rate is matched by numerous other competing processes. In the case of the particular single rock cited, that competing process is almost certainly geological uplift.