In 1994, French beekeepers started to blow the whistle on the abnormal behaviour and disappearance of their bee colonies foraging on sunflowers and maize. Quickly, beekeepers considered “Gaucho”, a new neonicotinoid authorised the same year for the treatment of sunflower and maize seeds, as the prime suspect.
Were these two events linked by a causal relation or purely coincidental? Neonicotinoids are chemicals which attack the nervous system of all insects, and thus can have a lethal impact on bees. They were nonetheless authorised, under the condition that they are not to be used over a dose previously identified by the industry, and accepted by the regulator, as being non-lethal for bees. However, french beekeepers observations questioned the scientific grounds of this decision. Was the non-lethal dose correctly identified? Furthermore, do neonicotinoid insecticides have chronic sub-lethal effects on bees which were not foreseen when they were authorised?




The presence of minerals on the deep seabed was first discovered by the HMS Challenger expedition in 1873. Polymetallic nodules and other seabed resources (polymetallic sulphides and crusts) offer abundant supplies of valuable minerals, including manganese, cobalt, copper, gold, silver and several so-called rare earth elements.
adviser to Prime Minister Gordon Brown’s government. Sir John was a very pleasant and down to earth academic who showed genuine enthusiasm for the work which the different PhD students presented to him.

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