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"Indeed..."
Posted on 08/14/2007 2:31:07 PM PDT by blam
'Cool farms' mask the extent of global warming
13:33 14 August 2007
NewScientist.com news service
Catherine Brahic
You've heard of urban heat islands. Now researchers have confirmed the existence of their opposite: cool farm patches.
Whereas urban development generates pockets of hot air, irrigated fields tend to cool things down, they say - and there is evidence that the effects have been felt in California for over a century.
In areas of intensive irrigation, such as the Central Valley in California, US, these "cool farms" have counteracted global warming, say Céline Bonfils and David Lobell of the Lawrence Livermore National Laboratory in California. But they warn that a reduction in irrigation could spell the end of the relief that these regions have enjoyed.
Bonfils and Lobell compared irrigation and temperature data for California between 1915 and 2000, during which time the area of irrigated land in the Central Valley doubled. They found that maximum daytime temperatures in the area were between 0.9 °C and 1.6 °C cooler during this period than areas that were only modestly irrigated.
Extrapolating back to when irrigation began in 1887, they calculate that intensively irrigated parts of the Central Valley are 1.8 °C to 3.2 °C cooler than they would otherwise have been.
Chilly spillover
That cooling occurs because much of the solar energy that hits irrigated ground during the day goes to evaporate the extra water in the soil and in plants instead of heating the air, explains Lara Kueppers of the University of California at Santa Cruz.
(Excerpt) Read more at environment.newscientist.com ...
So THAT’s where the term “Cool beans!” comes from?............
And, those nasty glaciers and ice packs screw up the leftist game plan as well. They should be outlawed!
When was there no climate change?
Thus putting more of the number one greenhouse gas, water vapor, into the atmosphere. Brilliant analysis.
Dr Laura read some news articles on her show about how Arctic ice is drying up and leaving bare dirt and gravel, clear evidence. Newspaper articles from the 1920s.
A couple of microseconds before The Big Bang........
Wait! Wait! Maybe this will work!!
"New Scientist" is neither, unless it meant, "Unlike 'Old Science', based on peer reviewed repeatable work, with no agenda other than demonstrated Truth".
" Old science did not prove our agenda, so we invented a form of it that does".
Before the NEA suceeded in dumbing down the population, the site would have been laughed out of existance, or would have been bookmarked in a special folder, along with The Onion, the New York Times, and the Lampoon.
I’ve gotten the New Scientist for years. Used to be all good. Now, only the pure physics section is OK, with the rest being essentially BBC lib arts drivel. I’m canceling my subscription.
The great Leftist enterprise: Bending science to the will of Leftist politics.
Reality, go take a seat over there and we’ll call when we need you.
Media: You already know what to do - Accentuate the hot and ignore the cool.
Click on POGW graphic for full GW rundown
New!!: Dr. John Ray's
GREENIE WATCH
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When the brontosaurus roamed the earth.
And don’t even get me started on the effect of oceans ...
I bet it isn't the water vapor so much as it is the man-made clouds. Almost all of the greenhouse effect occurs within 30 feet of the ground surface so boosting greenhouse gases within that low altitude should warm, not cool. It's the white reflective clouds responsible for the cooling. Man-made clouds will be a powerful climate management tool.
Exactly! They might as well claim that winters are throwing off their results. Pesky natural occurances.
Im heard a humorous story this morn from a Doctor buddy of mine, it goes like this:
The Scientific Method
A scientist was showing a colleague how he could make a grasshopper jump on command. He pulled the grasshopper from his cage put him on the lab table anddemanded it JUMP! Sure enough the grasshopper jumped.
He then pulled off one of the grasshoppers legs and again commanded it to JUMP! which it did. Each time he pulled off another leg and although not as well the Grasshopper jumped when ordered.
The Grasshopper was down to one leg but miraculously when commanded to jump he still managed to accomplish the feat.
The scientist then pulled off the last leg and ordered the Grasshopper to JUMP!....nothing, again JUMP!..... nothing.
The scientist then took out his log and wrote
Conclusion: “The hearing apparatus of the Grasshopper has definitively been proven to be located in the legs.
How many of these junk science climatologists were going to be “expert witnesses” at John Kennedy jr’s carbon credit law suit mills?
Climatologist frauds like James Hansen are PAID for their opinions that the earth is dooomed unless laws are changed YESTERDAY.
The end of global warming and its exposure as a grand hoax has real dollar in the pocket impact for these left wingers.
Irrigated fields DO tend to cool the surrounding air.
Just driving home the last two days, I observed the following:
Temperature according to thermometer in our vehicle (outside air): 103 yesterday, 100 today - yes, this matched the official temps.
Temperature reading on our road (surrounded by irrigated fields: 99 yesterday, 97 today.
But it is a LOT more humid...
Around here, when it cools down to 100 we break out the sweaters.
Temperature reading on our road (surrounded by irrigated fields: 99 yesterday, 97 today.
But it is a LOT more humid...
Water consumes heat energy when it evaporates. That is why "Swamp coolers" work in dry climates. Later, when it condenses into dew at night, it gives back that energy. Net result is zero. It is a moderating influence on daily temperature swings.
Heh. Besides making the dread greenhouse gas "Water Vapor".
Quick, everybody go out and turn on your lawn sprinklers.
Not by enough. The valley is still to darn hot. In Tracy it gets so hot in the summer we sell some of the excess heat to Satan.
The deal was set up a few years back, some lawyers from Tracy were asked how they "liked" their torment, and were foolishness to boast how it was nothing like Tracy, CA in the summer...
Really! If the oceans expand as they predict, wouldn't that provide an increase in surface area and evaporative cooling?
If it ever actually becomes a problem we can turn the rising seas to freshwater and irrigate. I know that solution doesn’t destroy capitalism, but I guess the enviro- wacko’s cannot have EVERYTHING. ;)
As far as the global mean temperature, it isn't a meaningful statistic anyway, except for the purpose of climate alarm-ism.
The bottom line is, there are many other factors besides GHGs affecting the temperature experienced in any given locale. GHGs/Global Warming/CO2 are totally overblown. Typical Green extremist, knee jerk, chicken little overreaction. Or is it, hype that perfectly addresses an anti capitalist socio economic agenda? Nahhhhhh! What am I thinking?
Temperature reading on our road (surrounded by irrigated fields: 99 yesterday, 97 today.
But it is a LOT more humid...
More humidity means the atmosphere increases its heat content (it can hold more heat). So overall there is no change or perhaps there will actually be a net heat increase due to the increased water vapor in the atmosphere absorbing more solar radiation (increased green house gases). So it should 'feel' just as hot or perhaps hotter. So basically you get lower temps but higher humidity and this results in a higher heat content. Thus, the explanation for people living in a desert claiming, 'but its a dry heat'.
All temperature readings should be biased with the humidity at the time to accurately reflect changes in atmospheric heat content. That of course would obviously magnify the significance of ocean temperatures :>.
Interesting link.
You are correct - that 99 degrees at my house feel just as hot, if not actually hotter (higher humidity usually results in a larger jump for “heat index”).
I can step out in the garden at 6:30 AM and I don’t even have to bend over or do any work to break out into a massive sweat. IN town, where the temps are actually a couple of degrees warmer, the sweat doesn’t pour off until I actually do some sort of work...
But once the sun is overhead, and the temps get above 97, it all is a wash because it is just hot. High humidity just makes it harder to breath and makes more sweat.
In other words, swamp coolers work on a really, really large scale in a dry climate like the Central Valley. The problem is it requires draining the aquifers to feed the irrigation spigots/swamp cooler.
While man-made global warming is very likely a phantom of our imagination, aquifer depletion is a real problem for our way of life.
We had an ironic twist occur regarding cooling devices during my stay in New Mexico.
Almost all homes there had swamp coolers (to save electricity) until recently, when concern for the aquifers caused new home construction to include refrigerated air (to save water).
gosh,
i’ll bet the cities now have to pay the united nations
and the united nations in return will give some of the monies to farmers.
/s
But since the most abundant greenhouse gas is water vapor (95%) and more irrigation would produce more water vapor wouldn’t that actually increase temperatures if the goracle was right?
Since water vapor is the most abundant greenhouse gas and the most effective it can be only a short time before liberals call for restrictions on agriculture in general and irrigation in particular.
So they are confirming that additional absorbed energy doesn’t necessarily mean higher temperatures - at least when there is liquid water about?
Well, duh. We knew that. The nighttime lows are also higher. Unless they can seperate the two, that's not "cooling" in the sense of the climate science folks (Tmin + Tmax)/2.
Whereas the sacred "WETLANDS", which the tree huggers have told us are mostly lost to development somehow didn't 'cool things down.'
These clowns are tripping over their own PR machine.
Man-made clouds from seawater solve both concerns. Free wave action energy could be used to spray seawater. The salt gives the water vapor something to start condensing on. The resulting clouds can reflect up to 95% of sunlight back out to space making the climate cooler. In addition the right kind of man-made clouds can be used as a blanket to retain heat if wanted. The increased rainfall will water crops and wild plant life for free, provide increased freshwater for human use, increase the amount of hydroelectric power, and replenish aquifers. If we mastered cloud-making we could airfreight freshwater in to any geographic area wanted and actively manage local climates.
Spoken like a true Zonie! (I’m a former Zonie too!)
Then we will eat all the cows, quickly, before they starve. This will stop the Methane Greenhouse Gas Emergency Menace! Positive thinking !
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