But seriously, if the Sun experiences another Maunder Minimum like quiet period, we could have a major economic disaster because agricultural seasons could be shortened. Hope the world loves eating more wheat, because a colder climate will hurt a lot of production of grains that depend on warmer weather (e.g., rice).
Celiac patients hardest hit.
In particular as feed for livestock will also get hit, so they can’t just go keto.
Stock up on butter and whey protein powder now!
...and thorium reactors.