Trees across the U.S. face dire threats, new report shows
A new report out this week warns that at least 1 in 9 tree species in the U.S. are at risk of extinction. Trees face a host of threats including invasive species, deadly disease and climate change. The data comes as part of the most comprehensive threat assessment ever collected on U.S. forests. PBS NewsHour is supported by - https://www.pbs.org/newshour/about/funders