The global decline of honey bees and other pollinating insects is caused by multiple, largely human-induced effects, according to a new study.
Over the past decade, scientists have been reporting steady and mysterious declines in the populations of so-called pollinator insects.
These include the honeybees, wasps, flies, beetles, butterflies and moths that help pollinate three-quarters of the world’s food crops, services worth $200 billion annually to the global economy.
The new …
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