![Alaska's iconic Columbia Glacier expected to stop retreating in 2020, says CU-Boulder study | CU Boulder Today | University of Colorado Boulder Alaska's iconic Columbia Glacier expected to stop retreating in 2020, says CU-Boulder study | CU Boulder Today | University of Colorado Boulder](https://www.colorado.edu/today/sites/default/files/styles/medium/public/Columbia%20glacier%202.jpg?itok=yNDRqRpv)
Alaska's iconic Columbia Glacier expected to stop retreating in 2020, says CU-Boulder study | CU Boulder Today | University of Colorado Boulder
![31 years of observations on Retreating Columbia Glacier, Washington - From a Glacier's Perspective - AGU Blogosphere 31 years of observations on Retreating Columbia Glacier, Washington - From a Glacier's Perspective - AGU Blogosphere](http://glacierchange.files.wordpress.com/2011/06/columbia-2010.jpg)
31 years of observations on Retreating Columbia Glacier, Washington - From a Glacier's Perspective - AGU Blogosphere
![31 years of observations on Retreating Columbia Glacier, Washington - From a Glacier's Perspective - AGU Blogosphere 31 years of observations on Retreating Columbia Glacier, Washington - From a Glacier's Perspective - AGU Blogosphere](https://blogs.agu.org/fromaglaciersperspective/files/2015/04/columbia-glacier2013-comp.jpg)