A new study has found that bumblebees are quickly disappearing, largely because global warming is causing their habitats to shrink.
The impact of global warming on pollinating insects overall has been a concern, but one variety in particular appears to be responding in an especially worrisome way.
New research has found that, for some reason, bumblebees are not expanding their territories northward in order to take advantage of cooler climates.
At the same time, their numbers have been dwindling in previously inhabited southern areas which have become inhospitably warmer due to a rise in temperatures.
The team tracked 67 different b
