/news/tags/u-s-forest-service U.S. Forest Service en-US Copyright Wed, 30 May 2018 13:05:12 GMT /news/environment-energy/2018-05-30/research-turns-to-cloning-in-an-attempt-to-save-ash-trees It’s been about 20 years since the invasive emerald ash borer first showed up in the U.S. and started killing ash trees. It’s claimed millions of the… Wed, 30 May 2018 13:05:12 GMT /news/environment-energy/2018-05-30/research-turns-to-cloning-in-an-attempt-to-save-ash-trees Steve Brown