Flight of the Bumblebees

Climate Change Could Push Bumblebees to Extinction

Bumblebee Decline Linked With Extreme Heat Waves

Climate Change: It’s a Buzzkill for Bumblebees, Study Finds

A major study has documented what has long been suspected: the bees are dying, and the world’s plants and biodiversity will suffer from that. Bumblebee extinction seems to be underway, and populations have declined across Europe by 17 percent and in America by some 46 percent.

The study found that over a 115-year period nearly half of the North American regions home to bumblebees lost all their populations. That’s called extinction, and it’s irreversible. The pattern was observed across a number of studies.

Bees are the great pollinators, as we know. According to one report:

Tomatoes, squash, and berries are just some of the crops we can thank bees for pollinating. Animal pollinators like bees, birds, and butterflies could be responsible for up to 1 out of every 3 bites of food we eat, the US Department of Agriculture says.

Honeybees have also been affected. Climate change and its consequent heat waves are the major cause, since bees can’t tolerate a rapidly heating climate. The study predicted “with surprising accuracy” how changes of bumblebee communities and species have reflected the pressures of increasing heat. More detailed studies are called for. Changes from farming, land use and pesticides are another factor.

Said one of the study’s authors: “What I suspect is that you wind up with this really terrible one-two punch. Climate change is making bees want to move to new places, and then you have things like pesticides and human land uses that are stopping them from moving.”

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