Massive spruce beetle outbreak in Colorado tied to drought, according to new CU study

[knocker]

A new University of Colorado Boulder study indicates drought high in the northern Colorado mountains is the primary trigger of a massive spruce beetle outbreak that is tied to long-term changes in sea-surface temperatures from the Northern Atlantic Ocean, a trend that is expected to continue for decades. - See more at: http://www.colorado.edu/news/releases/2013/10/10/massive-spruce-beetle-outbreak-colorado-tied-drought-according-new-cu-study#sthash.9XngXxk4.dpuf