A more sensationalist approach is "The Coming Global Superstorm" cobbled up by Whitley Strieber and Art Bell. It is a concoction of science and fiction intended to entertain.
The lesson I draw from the two works is that climate change is the normal state on Earth. We are fortunate in our capability to see a longer horizon than previous generations. It's something that we can't do a damn thing to change. What we can do is prepare for the inevitable. Put our critical infrastructure for food, power and living arrangements in a location that will remain habitable as the ice age arrives.
Felix notes that the only real difference in an ice age is a drop of temperature sufficient for the collection of snow to be unable to completely melt off. That results in a net increase in snow and ice year over year. Seattle, WA was once under a mile of ice. The area where I live in southeast Idaho was untouched by glaciers. See his book for a view of the prior edge of glaciation across North America.