Agence France-Presse: Populations of bees, butterflies and other species important for agricultural pollination are declining, posing potential risks to major world crops, a UN body on biodiversity said Friday. Many wild bees and butterflies have been declining in abundance, occurrence and diversity at local and regional scales in Northwest Europe and North America, said an assessment by the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES). It said declines had also been detected...