I can start.
Certainly there's evidence of climate change impacts on pests like the mountain pine beetle. The biggest single control agent for the mountain pine beetle is cold temperatures. The fact that cold temperatures have not occurred in B.C. and Alberta, to a large extent, over the last number of years has contributed to the expansion of the mountain pine beetle.
The other factor is that when you have dead and dying trees, those trees turn from carbon sinks into carbon sources, so they contribute to the CO2 in the atmosphere. That's another negative impact in terms of pest outbreaks.