Ash trees across much of the country are dying as a result of a green beetle called the emerald ash borer. The bug has spread from the upper Midwest imperiling millions of trees.
But there is opportunity amid the destruction. Urban lumber mills that saw up salvaged city trees are on the rise, fertilized by mounting demand for local products and a tsunami of supply delivered by the emerald ash borer.
It came from Asia, by way of Michigan
The emerald ash borer has been at work in Michigan for years.