The genetic code, perhaps better known as DNA, determines all biological diversity on Earth. Variation in DNA affects the ability of populations and species to adapt in a dynamic world. The Convention on Biological Diversity (CBD) considers genetic diversity as the first of the three levels – genes, species and ecosystems – at which biodiversity must be preserved. Without genetic diversity, species become extinct and ecosystems collapse. The Genetic Diversity research group studies genes to make recommendations on sustainable policies aimed at the optimal implementation of the CBD.