This 2009 study addressed potential long-term (10-20 years) effects on health and the environment (including biodiversity) of genetically modified plants through their marketing and cultivation in the EU.
Which crops did the study cover?
Focus was on the 4 genetically modified crops most relevant to the EU:
- Insect-resistant maize - Bt maize;
- Herbicide-tolerant oilseed rape and sugar beet;
- Starch-modified potato.
What did the study analyse?
The study covers:
- Likelihood of occurrence of effects;
- Identifies uncertainties and ways of minimising them e.g. modelling and improving monitoring methodology;
- Actions to increase knowledge e.g. research areas.
It used literature reviews, online surveys and a workshop to rank the likelihood of adverse long-term effects from crop-trait combinations.
The report does not consider the possible magnitude of the risks due to lack of quantitative information, nor measures to mitigate them.