These days about one in three bites of food you eat wouldn’t be possible without commercial bee pollination. And the economic value of insect pollination worldwide is estimated to be about $217 billion. But as important as bees have become for farming, there’s also increasing signs that bees are in trouble. In the decade-plus since the first cases of Colony Collapse Disorder were reported, bees are still dying in record numbers, and important questions remain unanswered. Over the course of one year, host Adam Allington and environment reporters David Schultz and Tiffany Stecker traveled to all corners of the honeybee ecosystem from Washington, D.C., to the California almond fields, and orchards of the upper Midwest to bring back answers to these questions.

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