Genetically modified crops - are they monsters of nature or could they provide answers to some of our most pressing environmental concerns? Will they create superweeds, run amock and change life as we know it, or are these fears greatly exaggerated?

Internationally respected microbiologist Jennifer Thomson takes us through the issues and concerns surrounding the development of genetically modified crops and their impacts on the environment. She explains how such crops are developed and assessed and discusses the likelihood of negative effects on biodiversity, pollen spread, and organic farming. GM crops may have tremendous potential for addressing some of the world's environmental problems and protecting the planet, particularly in developing countries - in fact we could face more harm if some of these technologies are not adopted.