I recently read an article online which can be found HERE. Save The Bees is a campaign across Europe and North America, "many wild bees and butterflies have been declining in abundance, occurrence and diversity at local regional scales in Northwest Europe and North America," - An assessment by the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES).
I also found this website below.
This website explains that since the late 1990's, beekeepers around the world have observed that bees are starting to disappear, and have reported an unusually high decline in the number of honeybees. Bee killing pesticides pose the most risk to pollinators. The main reason for global bee decline is linked to industrial agriculture, parasites/pathogens and climate change. The loss of biodiversity due to monocultures and the wide-spread use of bee-killing pesticides are particular threats for honeybees and wild pollinators. To protect our bees and agriculture we need to shift from destructive industrial agriculture towards ecological farming. First and important steps are: Ban all bee-harming pesticides, Adopt a bee-action plan and promote ecological farming.