This can be a controversial topic.

It's time for GM crops, adviser tells David Cameron
There is no evidence genetically modified crops are dangerous and they may even be more beneficial to health than natural produce, says government's top science adviser
Genetically modified crops could be more nutritious than natural produce, the government’s Chief Scientific Adviser has told the Prime Minister.
Sir Mark Walport has written to David Cameron recommending that farmers should start to plant GM crops.
There is no scientific evidence to suggest that such crops are dangerous to humans or the environment, he says
They could even be more beneficial to health, he argues. Scientists could add nutrients to the genetic make-up of plants.
They would cut down on the need for pesticides and help farmers feed a growing population at a time when global warming threatens climates. “Extensive studies have failed to reveal any inherent risks to humans or the environment,” said Sir Mark. “We take it for granted that because our shelves and supermarkets are heaving with food that there are no problems with food security. But we have limited land in the UK and climate disruption and population growth are putting pressure on food supply.”
http://www.telegraph.co.uk/earth/agricu ... meron.html