Some populations of mountain pine beetles now produce two generations of tree-killing offspring annually, dramatically increasing the potential for bugs to kill lodgepole and ponderosa pine trees, CU-Boulder researchers have found.
Because of the extra annual generation of beetles, there could be up to 60 times as many beetles attacking trees in any given year, the study found. And in response to warmer temperatures at high elevations, pine beetles also are better able to survive and attack trees that haven't previously developed defenses.
Awake too early when you should be asleep? Might want to try and switch things up. A new study by the University of Colorado shows that the longer people are awake during the time their biological clock is telling them to sleep the worse their sensitivity to insulin, which is a precursor to diabetes.
With about 200 billion plastic water bottles consumed and trashed in landfills worldwide each year, there's ample opportunity—and growing competition—to provide reusable alternatives. Sarah Kauss (Acct'97) embraced the challenge and has shown that her company, S'well, can elevate the ordinary in an appealing way.