SIERRA CLUB — ARE BUMBLEBEES GOING EXTINCT? — PLANET EARTH IN SILHOUETTES group

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Bumblebees are among the most effective pollinators—they’re big and they’re fuzzy, which means a lot of pollen sticks to them, and they buzz so vigorously that they knock more pollen out of flowers than other pollinators like honeybees do.

They are also very threatened by climate change, according to a report published today in Science, which found that the habitat where most species are found has narrowed considerably in recent decades. Between the baseline period (1901 to 1974) and the time when climate change began to have an effect on weather patterns (2000 to 2015), the probability that bumblebees would be found at a site in North America declined by 46 percent. In Europe, that probability declined by 17 percent.

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