"we need to start burying power lines.
We need to be stocking up these areas with a lot more food."

Centralized electricity will become unavailable. Rather than investing in power grids, invest in personally owned means of producing power to your home. Same with stocking up food. It's a good idea to have some stocks to tide you over, but there will be no substitute for producing your food yourself. Centralized production will vanish.

In an ice age Canada is gone. Look at maps of past glaciations and move to refugia that weren't buried in ice. Your house is not going to be able to be lived in underneath a mile thick glacier. Live where glaciers do not grow.

Thanks!