In the Nature Geoscience magazine appeared an article of the group of ecologists from the University of California at Berkeley, USA, under the guidance of Holly Maness, that the sharp increase in the number of bark beetles Dendroctonus ponderosae, which destroyed much of the forest in Western Canada - was the major cause of sudden warming in western Canada in the 21 th century...
video and more at: [link to hainanwel.com]