Interesting article on the latest research. I would note that western redcedar may have done well and expanded its range during and after the Little Ice Age, and the species now grows (and is dying) in areas it in no longer adapted to. A researcher “found young Western red cedars growing alongside drought-hardy Oregon white oaks.” What’s more, the cessation of Indian burning in the Willamette Valley let cedars “invade” areas where previously they would have succumbed to fire. The same in true for Doug-fir — it’s not doing well in sites it wasn’t well adapted to.
Research links cedar death to climate, details which trees are dying, which are surviving and shows how the species might be saved