California drought

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Bruv
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California drought

Post by Bruv »

California the sunshine state ?

R.I.P. California

Things are getting bad out there ?
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LarsMac
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Post by LarsMac »

Yes they are. The entire central valley has been relying on run-off from the mountains for most of their water for ages. The last time I flew to San Francisco, the lakes in the mountains looked to be nearly dry.

That was last September. The snow pack in the mountains was all but non-existent this winter. Unless they get a lot of rain and snow in the next few months, the central valley will all but dry up this summer.

Many farmers are selling off their water rights already, thinking they will have too little water to use, and they may not even try to grow a crop.

Here is an interesting take on the drought:

How the Drought Is Devastating California's #1 Food Export: Almonds

And another:

http://www.beachcalifornia.com/californ ... facts.html
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Bruv
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Post by Bruv »

What happens to the rest of America when the foodstore closes ?

How ironic that the State that leads the way in green lifestyle gets the big hammer of climate change.

With the impending disaster, why has America continued to be so against cutting consumption and pollution?
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LarsMac
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Post by LarsMac »

Food stores won't close. We will just end up paying a premium for food from Mexico.

The long term affects are far more of a problem. It will take years to recover, even if precipitation levels return to normal this year.

But many farmers are now beginning to pay for drilling for water. Something they never had to do before.
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Bruv
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Post by Bruv »

LarsMac;1477039 wrote: Food stores won't close. We will just end up paying a premium for food from Mexico.

The long term affects are far more of a problem.


I meant the Food store being California, it does grow an amazing amount of foodstuff, so they will need to be replaced plus the financial repercussions in the food production chain.

Is it just a one off bad year or has it been a decline over some time due to climate change?
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High Threshold
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Post by High Threshold »

Bruv;1477034 wrote: ...... With the impending disaster, why has America continued to be so against cutting consumption and pollution?
I'm just dying to see the feed back on that question, although I think we already know the answer.

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Saint_
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Post by Saint_ »

I heard today that they would need 11 trillion gallons of rainwater just to get out of the drought.

I guess California is a write off...oh well, it's overdue to sink into the ocean anyway.
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Bryn Mawr
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Post by Bryn Mawr »

I know it trivialises a desperate situation but I couldn't help being amused by a comment in today's news on the drought - one commentator revealed that Californians were even considering not putting ice in their drinks due to the drought :cool:
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Post by LarsMac »

Bryn Mawr;1477100 wrote: I know it trivialises a desperate situation but I couldn't help being amused by a comment in today's news on the drought - one commentator revealed that Californians were even considering not putting ice in their drinks due to the drought :cool:


HEY! That's pretty serious. I think California invented Ice in drinks.
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Bruv
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Post by Bruv »

Bryn Mawr;1477100 wrote: I know it trivialises a desperate situation but I couldn't help being amused by a comment in today's news on the drought - one commentator revealed that Californians were even considering not putting ice in their drinks due to the drought :cool:


Ever so slightly off topic but..............saw a documentary about somewhere in South America and an elderly man saying it was only the money he earned growing drugs that allowed him to taste cold water,after he bought a fridge and generator.......... puts our life style into context.
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FourPart
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Post by FourPart »

Actually, using ice would lessen the amount of water used, as it increases the volume. Hence the reason fast food chains pack their Cokes with crushed ice, thus making it into a squishy (or whatever the word is).
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Post by Bruv »

FourPart;1477115 wrote: Actually, using ice would lessen the amount of water used, as it increases the volume. Hence the reason fast food chains pack their Cokes with crushed ice, thus making it into a squishy (or whatever the word is).


What ?????

Iced water in whisky ?

Iced water in orange juice ?

Even iced water in water uses more water, because the water that is ice is actually fractionally smaller because it's cold, so it shrinks, so you get more water for the same volume. Thats why pipes burst, as the iced pipe thaws it expands and bursts the walls of the pipe.
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LarsMac
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Post by LarsMac »

Bruv;1477118 wrote: What ?????

Iced water in whisky ?

Iced water in orange juice ?

Even iced water in water uses more water, because the water that is ice is actually fractionally smaller because it's cold, so it shrinks, so you get more water for the same volume. Thats why pipes burst, as the iced pipe thaws it expands and bursts the walls of the pipe.


Umm, Actually, Water is at its densest, at 0 degrees C while still liquid and expands as it freezes. Ice is more dense that water at the same temperature.
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Post by Bruv »

LarsMac;1477120 wrote: Umm, Actually, Water is at its densest, at 0 degrees C while still liquid and expands as it freezes. Ice is more dense that water at the same temperature.


I should have quit whilst I was ahead, stopped at the ice in alcohol idea ?

I think I did know that...........but it is illogical, everything else shrinks when it is cold......any way.........carry on.
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FourPart
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Post by FourPart »

Bruv;1477118 wrote: What ?????

Iced water in whisky ?

Iced water in orange juice ?

Even iced water in water uses more water, because the water that is ice is actually fractionally smaller because it's cold, so it shrinks, so you get more water for the same volume. Thats why pipes burst, as the iced pipe thaws it expands and bursts the walls of the pipe.


Actually, it's the other way round. Pipes burst as the water freezes & expands, splitting the pipes. It's not until the water thaws that the bursts become evident once the water is able to start flowing again.

If you put ice in a glass & fill it to the brim with water then allow the ice to thaw, the level of the water goes down - which is what puzzle me about the claim that Global Warming will cause the sea levels to rise with the thawing of the Ice Caps. By rights, the opposite should happen.
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Post by Bruv »

FourPart;1477126 wrote: Actually, it's the other way round. Pipes burst as the water freezes & expands, splitting the pipes. It's not until the water thaws that the bursts become evident once the water is able to start flowing again.

If you put ice in a glass & fill it to the brim with water then allow the ice to thaw, the level of the water goes down - which is what puzzle me about the claim that Global Warming will cause the sea levels to rise with the thawing of the Ice Caps. By rights, the opposite should happen.


OK I have got it now.

Global warming will melt all frozen water, much of it higher than sea level, and then it will do what water does best........travel downward.....toward the seas ?
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LarsMac
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Post by LarsMac »

FourPart;1477126 wrote: Actually, it's the other way round. Pipes burst as the water freezes & expands, splitting the pipes. It's not until the water thaws that the bursts become evident once the water is able to start flowing again.

If you put ice in a glass & fill it to the brim with water then allow the ice to thaw, the level of the water goes down - which is what puzzle me about the claim that Global Warming will cause the sea levels to rise with the thawing of the Ice Caps. By rights, the opposite should happen.


It depends a little upon the temperature of the water and ice when you start.

If both the ice and water are as close to 32 degrees when you start, the glass will over run when the ice thaws. Which will take a while, because there will be very little temperature change until the water begins to warm from the ambient air around the glass.

The colder the ice when you start, the more the water level in the glass will recede as the ice melts.

I learned a lot of this when one of my grandkids started playing with water and ice as a science project, and recruited me as lab assistant.
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FourPart
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Post by FourPart »

Bruv;1477127 wrote: OK I have got it now.

Global warming will melt all frozen water, much of it higher than sea level, and then it will do what water does best........travel downward.....toward the seas ?


I believe only a small proportion of the ice is actually above sea level, as far as mountain tops & glaciers are concerned. Even most ice at sea level is below the water level (as with icebergs). However, I must admit that when including the Polar Icecaps, I hadn't considered Antarctica which, of course, is actually land, and therefore technically above sea level to start with.
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Post by Bruv »

And I suppose there is the expansion of everything as it warms...................am I being silly now ?
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FourPart
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Post by FourPart »

Bruv;1477132 wrote: And I suppose there is the expansion of everything as it warms...................am I being silly now ?
It seems the whole thing about how water freezes is far more complex.

Why do pipes burst they way they do?

(quite an interesting article - it explains why pipes split lengthwise, rather than laterally - something I'd never even considered previously)

Water is pretty much unique in many ways. The way its density changes according to temperature being just one of them.
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Post by halfway »

People should conserve. Not simply because of mandate, but simple conservation of anything of worth.

Human nature is selfish.
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FourPart
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Post by FourPart »

halfway;1477323 wrote: People should conserve. Not simply because of mandate, but simple conservation of anything of worth.

Human nature is selfish.
Absolutely. Plus nature provides everything of real worth for free.
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YZGI
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Post by YZGI »

Why don't they build a de-salination plant?
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AnneBoleyn
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Post by AnneBoleyn »

YZGI;1477365 wrote: Why don't they build a de-salination plant?


Indeed. I know CA has been able to process sewage water into drinkable water & I saw Diane Sawyer or David Muir drink it. Clear, clean & tasty, they said.
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AnneBoleyn
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Post by AnneBoleyn »

halfway;1477323 wrote: People should conserve. Not simply because of mandate, but simple conservation of anything of worth.

Human nature is selfish.




I agree wholeheartedly & I was taught never to waste electricity, to turn off lights, not to put on the faucet unless it was needed at that moment, not to let it run. I live in a place where electricity is "included" in the price, but I behave the same way I was taught, by parents who grew up poor & knew how to save every penny, never to waste what we are so lucky to have & should be grateful for having it.

Do you think it is selfishness or carelessness, or unconsciousness of actions, or are they all the same?
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LarsMac
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Post by LarsMac »

YZGI;1477365 wrote: Why don't they build a de-salination plant?


AnneBoleyn;1477367 wrote: Indeed. I know CA has been able to process sewage water into drinkable water & I saw Diane Sawyer or David Muir drink it. Clear, clean & tasty, they said.


California has some very large Desalination plants. They are building more.
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FourPart
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Post by FourPart »

LarsMac;1477371 wrote: California has some very large Desalination plants. They are building more.If they could power them by solar, wind, or even tidal energy, all the better.

As far as drinking processed sewage water, it has been proved that statistically speaking, every molecule of water we drink must already have been drunk by thousands of dinosaurs before us.
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