Posted on 08/05/2014 8:12:03 AM PDT by Bulwinkle
Large-scale groundwater extraction for irrigation, drinking water or industry has resulted in an annual rise in sea levels of approximately 0.8mm - this works out at one quarter of total annual sea-level rise (3.1mm). The remaining total can be attributed to thermal expansion (50%) and run off from glaciers and ice caps (25% approx.).
(Excerpt) Read more at waterworld.com ...
Shove it back in their face: IF you are truly concerned about sea levels rising, must be for massive cuts is ground water pumping.
D’oh
So replacing groundwater use with desalinization plants will save the world?
All we have to due is greatly increase the cost of our water to make it work!
Water or sea level rising or falling based upon what fixed point?
Specific location, please.
The Earth is inking The Earth is sinking .. WE need more gubamint relief!!
Why don’t they just use micrometers or nanometers for measurements so they will sound like huge amounts. (S)
We should be buildling massive Thorium Salt Reactors to power giant desalinization plants that can take water from the ocean and use it for drinking water and take the excfess water and pipe it BACK into Aquafers.
Also these reactors can use excess power to break apart water for hydrogen gas that can be used for peak demand electricity and also to make synthetic gasoline during the night time when power demand is least.
Also if we developed enough safe Thorium Reactors we could use excess power to power giant greenhouses to grow vegetables in northern climates using the excess heat.
[ Water or sea level rising or falling based upon what fixed point?
Specific location, please. ]
Given that the plates float on magma and removing water (which is denser than rock) from the plates the landmass should rise slightly which shoudl counter sea level rise...
Oh and the plates are stil rebounding from effects of the last ice age....
You are absolutely correct. When the hypocrisy of the left is blatant, it needs to be pointed out as publicly as possible.
California’s ground extracted water is Far Worse than the all the coal fired plants is the county!
“Oh and the plates are stil rebounding from effects of the last ice age....”
Isostatic rebound - why sea level is rising at the ends of England and falling at the center.
Outside of any global warming scare tactics, ground water depletion IS a local problem in some areas.
The image in the immediate left in the link below shows a man next to a pole that marks what “ground level” was in that area of the central valley of California in 1925 (a good 60+ feet higher), 1955 and 1977. Clearly this is not a new phenomena and clearly it has more to do with how water is being used than “global warming”.
http://ca.water.usgs.gov/projects/central-valley/land-subsidence-monitoring-network.html
Yes it is a stunning photo, even more so in that was one of the ‘wettest’ periods in the last 7000 years:
California drought: Past dry periods have lasted more than 200 years, scientists say
“...the past century has been among the wettest of the last 7,000 years.”
http://www.mercurynews.com/science/ci_24993601/california-drought-past-dry-periods-have-lasted-more
“Yes it is a stunning photo, even more so in that was one of the ‘wettest’ periods in the last 7000 years:”
The subsidence in the central valley has very little to do with the current drought, or even droughts over the last century. It is PRIMARILY due to the high amount of water pumped out of the ground for farming in the central valley; an activity - rate of water extraction, the valley did not experience until the last century.
That water had been placed below ground over centuries, stored during every major wet season and period, as the valley floor flooded like a vast wetland. Extracting it in the massive way that California farming has done in the last century has literally lowered the valley floor.
Now, with so much already extracted in earlier years and with the current drought, the subsidence has slowed as additional water extraction is more difficult and less successful.
California needs desalinization plants, not “high speed” rail lines.
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