Sea levels are rising

[El Cid]

just watched a program where they have found a sea fossil, on the south coast, which is thirty feet above the beach. If this is the case surely water has risen and declined in past years without the help of modern intervention.

 

Does that mean that if mankind burns all the carbon, which has been stored under the earth for millions of years, that cannot affect the climate?

 

We have consumed a lot of oil/coal/gas over the past 100 years, can you imagine all that heat/CO2

[Cyclone]

I was pointing out that the word 'engineer' has different meanings, within this country and even more in other countries.

 

No you weren't, you were belittling a Dr who worked at Nasa because you didn't like his argument.

 

---------- Post added 14-01-2018 at 09:29 ----------

 

you think that caused the sea levels to go down?

 

It triggered an ice age, where a lot of the water becomes locked up in the poles, so yes, it almost certainly caused sea levels to fall.

Not to mention that it physically altered the shape of the earth.

 

---------- Post added 14-01-2018 at 09:30 ----------

 

Which historical climate record don't you understand?

 

Where did this question come from?

 

I said that the models we have don't accurately make predictions for historical climate.

Perhaps this entire topic is a bit too complex for you.

[Robin-H]

just watched a program where they have found a sea fossil, on the south coast, which is thirty feet above the beach. If this is the case surely water has risen and declined in past years without the help of modern intervention.

 

Of course sea levels have changed dramatically in the past.

 

There have been periods when there as been no ice on earth at all (such as during the hundreds of millions of years dinosaurs were knocking about), and so the sea level was much higher than today - about 170 meters higher.

 

Also, the continents look very different to how they looked millions years ago, with the plates having moved, shoved, twisted etc etc. There are sea shells on the top of Mount Everest (which is a relatively recent mountain geologically speaking).

[retep]

To try and measure water on a spinning ball influenced by tides must be like knitting fog, to measure it to to any degree of accuracy they have to be kidding.

[Cyclone]

It also inconveniently moves about due to the gravity of the moon.

But you can measure how high and low it goes on a regular basis over a long period of time (in a given location) and then with some basic statistics look for any trend in that data.

Then repeat that for data points all over the planet and you've got a pretty decent data set to tell you if there's any overall or localised trends.

[Robin-H]

To try and measure water on a spinning ball influenced by tides must be like knitting fog, to measure it to to any degree of accuracy they have to be kidding.

 

Not really, it's called measuring trends. Just measure the same places over a period of time and see if there are any longterm trends. It's pretty simple.

[retep]

It also inconveniently moves about due to the gravity of the moon.

But you can measure how high and low it goes on a regular basis over a long period of time (in a given location) and then with some basic statistics look for any trend in that data.

Then repeat that for data points all over the planet and you've got a pretty decent data set to tell you if there's any overall or localised trends.

 

So guesswork.

[Robin-H]

So guesswork.

 

What? In what way was any of that describing guess work?

Edited January 14, 2018 by Robin-H

[retep]

What? In what way was any of that describing guess work?

 

Try carrying a bucket of water and guess where the next splash will be.

[Robin-H]

Try carrying a bucket of water and guess where the next splash will be.

 

And that is relevant to measuring sea level how exactly? I'll love to hear this one!