Climate change is bad news for bees

It's hard to miss the fact that bees are in trouble, with worrying news of colony collapse disorder devastating bee numbers, and concerns about the effects of pesticides on our most important pollinators. Now there's something else for our buzzing friends to worry about: climate change! Jeremy Kerr and his colleagues at the University of Ottawa have been using museum specimens to track how bee populations have shifted over the past century. What they've discovered is that bees and climate change don't mix...