Originally posted by DeepThought
You are right about chaos theory not being a theory of non-deterministic systems, But the behaviour is effectively random as predictions depend on measuring initial conditions on scales smaller than any scale you can make measurements on (similar to the notion of pseudo-random numbers in computer science). In fact you can make a case for true ran never found any significant benefit, and have found harms (e.g. beta-carotene for smokers).
“....You are right about chaos theory not being a theory of non-deterministic systems, But the behaviour is effectively random as predictions depend on measuring initial conditions on scales smaller than any scale you can make measurements on (similar to the notion of pseudo-random numbers in computer science). ….”
I know, and I ought to! I have done a course at university on this.
“....In fact you can make a case for true randomness because at very short distance scales the physics is determined by quantum mechanics which is random. ...”
that would depend on which interpretation of the equations in quantum mechanics are correct for although they all predict unpredictability, they don't all predict true randomness.
“...But the use of pesticides and overuse of antibiotics and hormones, especially in high intensity farming do present a health hazard. ...”
not much generally -especially with most modern pesticides that, unlike in the bad old days when they often were so toxic you would drop dead from just touching them ( literally: some could go straight through unbroken skin! ) , are very selective and which do NOT persist in the environment and are not much more toxic to humans than soap!
I should know for I have got a C&G in horticulture and used to be a grower until my health problem.
“...I'd like a reference on the carbon footprint of organic farming. ...”
http://www.independent.co.uk/environment/green-living/organic-farming-no-better-for-the-environment-436949.html
-OK, that may be not a very convincing source. So try:
http://www.scribd.com/doc/17356325/Carbon-Footprint-of-Organic-Fertilizer
you have to read from about a third down in the above link before you see one reason why the idea of organic farming having less carbon footprint is too simplistic -it just depends.
Also, consider this: organic farming generally results in less food per hector than non-organic farming. “So what?” you may ask. Well, that can by itself, with all else being equal, makes its carbon footprint higher PER given amount of food produced. This is because one hector of land would need the same amount of ploughing and tilling etc regardless of the actual yield and all that ploughing and tilling will require machinery that burns up the SAME amount of diesel -think about that!
Also:
http://www.scribd.com/doc/14079717/The-Seven-Most-Dangerous-Myths-About-Organic
scroll down three quarters down and read what it says under:
“... Myth 6: Organic production could be the answer to concerns
about global climate change because it has a lower carbon
footprint ...”