City of Thornton on X: "The Emerald Ash Borer (EAB) was recently found in #Thornton. Since its initial discovery in the U.S. in 2002, it has killed millions of ash trees throughout
![American Mountain-Ash - Rose Family - Alternate Leaved - Tree in Hamilton Ontario, Canada - treehunter.info American Mountain-Ash - Rose Family - Alternate Leaved - Tree in Hamilton Ontario, Canada - treehunter.info](http://treehunter.info/Alternate/rose/americanmountainash/americanmountainash.jpg)
American Mountain-Ash - Rose Family - Alternate Leaved - Tree in Hamilton Ontario, Canada - treehunter.info
![Young European Ash tree or Fraxinus excelsior growing in a park, Vancouver, British Columbia, Canada Stock Photo - Alamy Young European Ash tree or Fraxinus excelsior growing in a park, Vancouver, British Columbia, Canada Stock Photo - Alamy](https://c8.alamy.com/comp/2CP356N/young-european-ash-tree-or-fraxinus-excelsior-growing-in-a-park-vancouver-british-columbia-canada-2CP356N.jpg)
Young European Ash tree or Fraxinus excelsior growing in a park, Vancouver, British Columbia, Canada Stock Photo - Alamy
![Restoration and Conservation of Black Ash Trees in the Northern Appalachian/Acadian Eco-region of Canada | CAKE: Climate Adaptation Knowledge Exchange Restoration and Conservation of Black Ash Trees in the Northern Appalachian/Acadian Eco-region of Canada | CAKE: Climate Adaptation Knowledge Exchange](https://www.cakex.org/sites/default/files/Nicholas%20A.%20Tonelli_black%20ash_wikimedia.jpg)