Our Sun has begun a 30 year cycle of decreased activity termed a Grand Solar Minimum and known by it's more common effect "Global Cooling". The most intense cycles occur roughly every 396 years with a medium cooling cycle every 207 years.
From 2016 forward global temperatures will cool 1.5-3C which will have a dramatic impact on weather patterns and global food production. This is the greatest threat, not the cold itself to the human population.
Below is a list of resources to get you started learning about the past events called the Wolff, Sporer, Maunder and Dalton Grand Solar Minimums. You can look back in history and see how society was affected and now with better science, we can accurately measure the declines in solar output and take measures to adapt our global grain growing strategies for cooler and wetter conditions.
Mini Ice Age News Consolidator and Resource Sites
Agriculture Commodities Price Indicies
Reports & Published Papers – Grand Solar Minimum / Mini Ice Age
Global Temperature and Weather Maps
Solar & Magnetic Pole Activity Pages
Meteors in Our Atmosphere