nellikin wrote:Blind groper wrote:I find myself agreeing with Seth here.
Blind groper wrote:The 'organic' business is not based on science...The basic problem with organic agriculture is that it is based on dogma, not science.
I think you should clarify this. Perhaps the organic business didn't grow out of science, but there is science to support organic agriculture. Numerous studies have shown, for example, that soils store loats more carbon under organic agriculture than conventional, and that converting a conventional farm to an organic farm can sequester large amounts of carbon in short periods of time (sometimes doubling soil carbon stores). This is beneficial to soil health and the environment generally, increasing biodiversity and retaining nutrients within the soil-plant system.
"Biodiversity" is not necessarily a valid goal in agriculture. Generally speaking, unless an organism is beneficial enough to the crop being grown that the reductions in yield suffered through "organically" supporting such organisms substantially outweighs increases in crop yields that can be achieved by using agricultural chemicals to compensate and balance the soil chemistry to achieve maximum productivity per square meter.
It is much easier, and more accurate, and provides substantially greater yields to add chemicals and nutrients to crops as they are growing, through spreading or irrigation, to deal with soil deficiencies which may vary widely even within a single field. Soil chemistry is no longer primitive, and soil testing combined with GPS can tell a farmer exactly what to apply, when, and where to maximize his yield. Some new cutting edge crop tilling systems (tractors) can do it all by themselves, being robotically guided by GPS and computer programming to apply fertilizers, pesticides and herbicides with great specificity and precise application
If organic farming were economically superior, everyone would be doing it. It's not. It's scientific Ludditism. America feeds the world because our crop yields per square acre are among the highest in the world, and in human history, as a result of our superior crop science and ability to tailor a particular piece of land to a particular crop for maximum efficiency and yield. Take that away and go back to "organic" methods and hundreds of millions of people will starve to death worldwide.
Organic farming is a luxury and a boutique industry fit for wealthy consumers only. It's costs and inefficiencies can only be overcome by massively increasing the price of the commodity to the consumer, and that only works where consumers are wealthy enough to pay the going rate, which means a first-world industrialized society with a strong economy. Third-world countries cannot afford to think in those terms and must maximize yields however it's possible and economically feasible to do so just to feed their people.
An offshoot of this, for example, is that mineral nutrients such as phosphates, which are mined and transported around the world (mainly from South America), are not required. This reduces the fossil-fuel consumption associated carbon emissions of mining and transport associated with agriculture. (A note on phosporus - global stocks are running low, which will perhaps leadi to a reverse of the modern agricultural revolution we witnessed post-WW2 with the large-scale introduction of modern agricultural pratices and a break-down of world food procution). A similar scenario reveals itself for pesticids used in conventional agriculture, which are largely organo-phosphates, produced from fossil fuels. Monsanto has a very large carbon footprint!
Phosphates are mined because they are plentiful and cheap. When they become scarce and expensive, phosphates will be created "artificially" at a higher cost, but will still be available. Or, crop science will figure out how to replace mined phosphates with other products that do the job as well, perhaps by extracting phosphates from water, both fresh (which would be beneficial to the environment) or from the ocean.
With regards to health issues, I don't know the science a won't try to defend it. I don't know if there are any benefits to eating organic for my health, but I can distinguish a battery chicken from and organic one by taste, for sure.
I'd like to see a double-blind experiment to confirm this.
The issue with organic farming, as I see it, is that it often isn't regulated by government, leading to wishy-washy definitions of what is organic and what not. In germany, the govt. legislated years back to define minimum standards for labelling of organic food. Many consumer / organic groups complained that the guidelines weren't strict enough, and have stricter guidelines themselves (for example Demeter or Bioland), but they still can label themselves organic as they exceed the minimum standards.
"Organic" is a label that the majority of people in the world simply cannot afford.
Rum wrote:We aren't talking about organic (the OP wasn't meant to anyway), but about keeping and slaughtering animals humanely.
I hate the word humane. Humans go around killing each other, shotting wildlife without reason, destroying their envirnoment. Their is nothing good about that.
Wrong. Humans shot wildlife with very good reasons: eating them and controlling their populations. As for killing each other, I'm not so sure that's a bad thing altogether. As for the environment, plenty of other animals "destroy" their environments. Just take prairie dogs for example.
However, as a chicken owner - and all my chooks are / have been as dumb as they come - I still don't want to cause my animals any harm. They stop laying if they aren't happy and healthy.
Yup.
Seth wrote:Cows fart. Factory (feedlot) cows fart just as much as grass-fed cows do.
I thought studies had shown otherwise, and that grain-fed cows fart more, as they have a higher protein diet, which,when digested by the methanogens in their stomache, yields higher methane concentraionts and emissions.
I seriously doubt it, but I'm open to the critically robust scientific evidence proving that assertion if you can produce it. Then again, I don't really care about cow farts because the REAL major methane source on the planet, the one that's really having an effect, is termites in the Amazon. Exterminate them before you bother with cows, because we eat cows, we don't eat termites.
Seth wrote:There's legitimate concerns about water pollution from concentrated feedlot operations, but both the states and the feds have strict regulations about discharges into waterways. And free-range grass-fed operations are not currently subject to any regulations regarding runoff, although the feds are toying with them...which will put many small organic operations (like mine) out of business entirely.
And fracking takes place thousands of feet below the water tables, and there has been exactly ONE EPA confirmed case of fracking fluid in a water well, in Wyoming. So long as the well casing is properly cemented and sealed, which is required to keep the gas in the pipe anyway, fracking fluid does not contaminate any water tables. What does occasionally cause pollution are fracking fluid pits where local laws allow drillers to pump the waste fluid into an open pit, which they then cover up and abandon. In the past this lead to leaching of fracking fluid into shallow water supplies and adjacent water users were rightfully outraged at this.
In Australia, fracking doesn't always take place so deep underground,
Yes it does. Unless you're suggesting that your gas and oil fields begin a couple of hundred feet down, which is where most of the shallow aquifers lie. Now deep-well ancestral water can indeed be thousands of feet down, but those reservoirs are pretty well mapped, and the gas usually lies well below them. But, you may be right, which only militates for stringent borehole cementing regulations and mandatory monitoring of area wells both before and after drilling...but not bans on either drilling or fracking.
and there are legitimate concerns as to the effects of coal seam gas extraction on the environemtn,
Yes, coalbed methane is a fine source of energy that should be tapped. There's work going on here to mandate that coalbed methane byproducts of mining be captured and used as fuel somehow, perhaps to run mine infrastructure. But that methane is being created and released from coal beds all the time anyway. Moreover, one of the major sources of methane is products of biomass decomposition...specifically the dead and dying boreal forests of, for example, Canada and Russia. I've asked the question several times of some experts whether it's better for the greenhouse gas situation to let these vast forests decompose, thereby releasing gasses more than 30 times more harmful than CO2 into the atmosphere, or whether we should simply torch off all those dead forests and burn up the potential methane while emitting only the CO2 and particulates, which I think are less harmful than the decomposition products.
But coalbed methane has nothing to do with fracking.
as all the studies conducted have been undertaken/commissioned by the mining industry.
So?
My supervisor, a professor of hydrology, is trying to establish Australia's first independant centre to investigate coal-seam gas extraction techniques and its effects on the environment.
Good for him. However, that has nothing to do with fracking and contamination of water supplies.
I'd be interested in who has investigated this in America, and who paid for the investigations. I thought Gasland came to some other conclusions.
If you doubt the results and the data, then go collect your own data.
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