The EU's top court has backed an almost complete European ban on the use of some of the world's most widely used pesticides. These toxic chemicals, known as neonicotinoids, are responsible for plummeting numbers of bees around the world, scientists recently confirmed. Years of research has shown that under controlled conditions the chemicals are toxic to honey bees and bumblebees. They cause brain damage that can affect learning and memory and impair their ability to forage for nectar and pollen. The latest court ruling stated that the the European Commission had been right in 2013 to restrict their use in order to protect bees.