If it's true that Earth is heading into global cooling, as many solar scientists are saying, then food growing areas may be greatly affected. According to this video, within 7 years we are heading for such a possible scenario.
What effect will this have on food prices and the economy?
This means that people may need to learn some new skills, how to grow food in cold conditions, and how to preserve and prepare foods using oft wasted parts.
I would suggest focusing on learning how to lactoferment foods and making bone broths and soups for a start.
Animals are going to be easier to grow in cold areas than food crops. But even then there are often mass livestock die-offs that can occur during severe winter storms. If the Northern hemisphere is heading for 2-3C drop in temperatures, this could be very hard on people's lives.
Thankfully we have fossil fuels that can help protect us from dire cold. It doesn't seem wise to be putting coal companies out of business.
The Organic Fool