Botany One @botany.one · Jul 26 The microrefugia were found on south-facing slopes, away from the summer sun. These sites were 6°C cooler and more humid than the more exposed areas. Look up and the difference was visible. The trees at the coolest site had an average canopy dieback of 15% compared to the 81% at the hottest. (6/10)
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The existence of microrefugia sounds like good news, but even here the measurements showed trees were in trouble, with 20% vascular damage. Once a tree passes 40% damage death comes rapidly. That suggests that even the trees in the microrefugia need help. (7/10)