Honeybee populations have been in decline for several years. Scientists now believe they've made a breakthrough in finding out why. For the first time they've identified the spread of diseases shared with other pollinator groups - such as the hoverfly - as a significant factor. CATHERINE HARTE reports
According to the World Health Organisation, more than 30 serious new diseases have emerged in the last three decades. Mark Walters describes one of them, Lyme disease, and shows how our destruction of the environment is inextricably linked to its proliferation
