“These withering years are killing trees,” writes climate and ecosystem researcher Daniel Griffin in the New York Times opinion pages. Not your usual op-ed, Griffin’s analysis is bolstered by graphics from Nathaniel Lash, that pan horizontally across the rings of a 500-year-old Mount Pinos Douglas fir, charting its 1538 saplinghood through stifling droughts over the centuries to, troublingly, its missing rings and slivers of growth in several post-2010 years.