Bees pollinate 71 of the 100 crop species that provide 90% of food worldwide. They also pollinate wild plants, helping sustain biodiversity and the beauty of the natural world. But climate change, pesticides and parasites are taking a terrible toll on bees, and they need protecting, said European beekeepers, who held their annual congress in Quimper, western France, this week. The congress, which said some European beekeepers were suffering “significant mortalities and catastrophic harvests due to difficult climatic conditions,” was an opportunity for beekeepers and scientists to respond to the major concerns. The European Union, the world’s second-largest importer of honey, currently produces just 60% of what it consumes. French beekeepers, for example, expect to harvest between 12,000 and 14,000 metric tons of honey this year, far lower than the 30,000 tons they harvested in the 1990s, according to the National Union of French Beekeepers (UNAF). “I’ve been fighting for …