There are so many examples, such as how we feel about genetically-modified (GM) foods.
Genetically-modified crops might turn into weeds by escaping from farms, or by interbreeding with other species.
That's known as co-decision, but in the case of genetically-modified food it has led to an impasse.
Much Soya, found in many foods, is modified and much bread is nowadays produced with a genetically-modified yeast.
In the 1990s, I earned my spurs campaigning for public acceptance of genetically-modified crops in the European Union.
It will allow countries to reject imports of genetically-modified (GM) goods if they can cite valid scientific reasons.
Ironically, Americans appear to agree more on climate-change science than other high-profile scientific controversies like the safety of genetically-modified organisms.
Can there be a meeting of minds between researchers into genetically-modified crops and those who are deeply hostile to the technology?
Their work has covered several policy areas, including environmental taxation, the politics of genetically-modified food, and the effectiveness of global environmental agreements.
The chances are that today you have already eaten a genetically-modified foodstuff or a food that was made with a modified organism.
The BSE episode has made many people distrust science, a distrust which manifests itself now in the entrenched attitudes to genetically-modified crops.
In Tuesday's barren market, Monsanto shares spiked on news that better-than-expected sales from its genetically-modified seeds business will yield higher year-end earnings.
EU's ban on imports of hormone-treated beef and genetically-modified foods, for instance.
But the one issue above all that sets Labour and the campaigners at each others' throats is the introduction of genetically-modified (GM) crops.
While many health advocates say eating genetically-modified plants appears to be safe, some say foods containing such organisms should be labeled as such.
The use of genetically-modified bacteria to produce drugs such as insulin has been a revolution in medicine and saved the lives of millions.
It is also expect to lead or share policy on food poisoning organisms, animal feed, food hygiene, genetically-modified food and other novel processes.
Section 735 effectively shields large biotech companies, like Monsanto, from the federal courts in case something is found to be harmful in their genetically-modified seeds.
In a BBC Wales lecture in February, he spoke in favour of genetically-modified (GM) crops as an important component in future efforts to feed a growing world population.
She dismissed concerns from outside the US that genetically-modified (GM) foods could harm human health as "unsubstantiated", and addressed drug trafficking and the employment of former nuclear weapons scientists.
But many argue that genetically-modified food is simply unnecessary.
And it was strange that there was no place for the ban on genetically-modified contents in Asda's own-brand products, the government's announcement of right-to-roam legislation and withdrawal of soyabean oil breast-implants, or the extension for the Northern Ireland peace process.
And Dr. O'Brochta, what's so important about finding that this genetically modified malaria-resistant mosquito is a strong mosquito?
T-cells with genetically modified viruses carrying genes that coded for receptors to melanoma molecules.
Negotiators also will discuss whether prominent labeling of genetically modified or hormone-treated foodstuffs in Europe can settle differences.
Environmentalists had argued that there might be a risk of cross-pollination between genetically modified plants and neighbouring crops.
There are other contentious trade issues too, ranging from poultry-slaughtering methods to genetically modified maize.
It could quickly escalate, since America and Europe are also at odds over hormone-treated beef, genetically modified foods and much else.
Many funds already keep a close watch on how firms deal with a variety of controversies, from genetically modified foods to third-world labour standards.
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