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Better coping with green chemistry
PASS by a chemical plant, and the plumes billowing from its smokestacks could get you thinking. What filthy concoctions are being brewed inside,[link widoczny dla zalogowanych], and what nasty stuff is it spewing in to the environment?
You may be right to worry. Caffeine industry relies on many ingredients that within the wrong place are harmful to the environment, human health or both. If that turns your nagging doubt right into a full-blown headache, popping an herbal viagra is only going to worsen it: pharmaceuticals are simply among the resulting items that not many of us could do without.
Short of eliminating our drugs,[link widoczny dla zalogowanych], paints, plastics and textiles, what you can do? Quite a bit, actually. At night bubbling syntheses which make caffeine products we all rely on, another sort of chemical transformation has become happening. Catalysed by yo-yoing oil prices, new regulations and pressure from consumers and retailers, industrial chemistry is getting cleaner. Products as diverse because the shoes we wear, the soap we wash with and also the decaf we drink are beginning to be manufactured in processes having a green tinge.
Read on: Learn more about the green chemistry revolution
Or: see examples of green chemistry in action in the seven case studies below
As a chemist of 35 years professional go through it grates on me every time I hear the mis-information and inaccuracy peddled in the main stream media about "chemicals" and "organic" and "natural" and . you obtain the idea.
Guess what - they all are chemicals, natural or industry-converted. And organic is only a chemical-based on carbon with a few minor exceptions. And natural is a term that's totally meaningless. Where would you thing petroleum originated from? Basically make urea as a nitrogenous fertilizer, where do the reactants originate from? From the natural world for chrissakes!
Where does a self-professed scientific publication log off perpetuating these myths? Oh, I see, that's what the "man within the street" calls them. Yes, why? Because media that should be based on truth and accuracy has said excitedly otherwise.
Anyway, back to essentials. Suppose I want to only use a naturally-occurring feedstock for my fuel plant - hey, corn is really a typical example. Consider the monoculture and foodsupply issues involved there have been I to make use of that to produce the amounts required. Or that the only naturally-occurring drug to treat a disease comes from a tree in the Amazon rain forest. Yep, clearfell countless acres simply to get those trees. Yeah, right. and it turns the same amount of the synthetic version of the drug is made in a lab reaction vessel utilizing a handful of kilos of petroleum derivatives. What's the desirable course there? I'm all to keep the Amazon!
Ok, I like to wear cotton - a pleasant absorbent natural fibre ideal for my humid climate. Greeno numero uno? No! Personally i think guilty about slave labour in under developed cotton fields and processing factories, concerning the an incredible number of litres of persistent pesticides necessary,[link widoczny dla zalogowanych], and also the megalitres of scare water resource pumped onto it.
Take every case on its merits, not knee-jerk journalistic blathering. Plastic shopping bags? I love them. I recycle them endlessly, they're far and away minimal impact on the environment in their manufacture and transportation. But, yes there is a litter and turtle kill issue. Whats the solution? Use plastic green non-wovens at 20-60 times the load and price and transport energy input? No,[link widoczny dla zalogowanych], manufacture the bags from rapidly biodegradable materials. Well established technology, easily done. Leave plastic shopping bags alone, simply make them from a much better material!
To people that scream, "industry hack and apologist!" Sorry,[link widoczny dla zalogowanych], I don't operate in industry,[link widoczny dla zalogowanych], the vast majority of my work is concerned with environmental and human health issues - I make a real difference, I do not just talk about it.
Leave "chemicals" and "organic" to the chemists,[link widoczny dla zalogowanych], it's a bit like saying most rapists are men therefore all men are bad. Get your terminology right and then you will gain some respect whenever you try to argue your point.
Never a name so incongruous? Sorry, Rational1, however, you poked out your chin - that is totally irrational. Pesticides and herbicides, be they "natural" or synthetic, are all toxic - that is why they work!
Toxicity isn't preserve of synthetic chemicals. Probably the most potent liver cancer causitive chemicals may be the naturally occurring aflatoxin - formed by molds that live on peanuts. I believe I'll have my peanuts after some chemical residue, please, and hold the aflatoxin!
How do you think most synthetic pesticides were found - these were just manufactured analogues from the effective chemicals contained in natural pest management materials.
Organic fertilizers? Oh,[link widoczny dla zalogowanych], you mean the dilute, inconsistent-strength, organic materials which breakdown to yield exactly the same chemicals - nitrate, phosphate, potassium, magnesium, et al - that define synthetic fertilizers? I will tell you now the plants won't be aware of difference. But when you want to argue energy consumption during production, presence of trace materials and water-holding fibre in the fertilizer,[link widoczny dla zalogowanych], or utilization of waste material streams, hey,[link widoczny dla zalogowanych], I'm all for it. Unfortunately there seriously isn't enough to visit round in massive farming. Farming I might include that continues to be ploughing in its stubble and using green manure crops for hundreds of years anyway.
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