Appologies for the length of this post, it’s a complex subject. Hopefully the links work, if not will post in comments.
Does Q mention the climate in any drops?
We have entered solar cycle 25, also known as the Eddy Minimum. GSMs happen every 350-400 yrs & last 50 -70 odd years, the last being the Maunder Minimum 1645 to 1710. Then came the Dalton Minimum 1796 – 1810 ish, not as severe as the Maunder but devastating none the less & part of the lesser 100 yr cycle. NASA predicts the current Eddy Minimum to be the weakest in the last 200 years & comparable with the Dalton Minimum, it will peak around 2025.
Maunder Min: enter text
Dalton Min with a focus on Australia, a very interesting read written from an Actuary (someone who deals with risk assessment) https://www.actuaries.asn.au/Library/Events/SUM/2013/Sum2013PaperBrentWalker.pdf
What does it all mean? Global cooling! Increased volcanic activity & earthquakes, decrease in magnetic field strength causing an increase in cloud nucleating cosmic rays & magma excitation. Increased volcanic activity partially blocks the sun causing global temps to drop, its complex. https://electroverse.net/we-entered-the-modern-grand-solar-minimum-on-june-8-2020/
Volcanic activity aside, the Jetstream is also affected causing some parts of the globe to actually get warmer while others get colder, we saw this recently with Siberia experiencing heatwaves while the U.S. experienced unseasonal severe cold snaps.
https://electroverse.net/recap-the-changing-jet-stream-and-global-cooling/
So what does it all mean for humanity? Basically massive crop failure, famine, reduced population due to starvation & the fall of empires. Yay, we certainly do live in interesting times. Not everyone will like how the movie ends. Glaciers will move south in the northern hemisphere which brings me to Trump ordering a fleet of icebreakers. Yes its true. Trumps icebreakers: https://www.defensenews.com/naval/2020/06/09/trump-memo-demands-new-fleet-of-arctic-icebreakers-to-be-ready-by-2029/ & https://www.naturalblaze.com/2020/06/trumps-new-icebreaker-fleet-and-the-grand-solar-minimum-2020.html
Roman Empire collapse https://www.livescience.com/okmok-volcano-roman-republic-collapse.html
Rise & fall of Empires in relation to solar activity, a great read
https://www.armstrongeconomics.com/history/ancient-economies/solar-minimum-the-fastest-decline-in-almost-10000-years/? Prof. Valentina Zharkova study in full : https://www.tandfonline.com/doi/full/10.1080/23328940.2020.1796243
For the science buffs, Steve McIntyre, who is he? https://en.wikipedia.org/wiki/Steve_McIntyre Steve’s website is dedicated to revealing the truth about the stats presented to the public re climate change. He is famous for debunking the “hockey stick graph”. Be warned its heavy going but well worth it. https://climateaudit.org/ I pray that the plan includes a strategy to minimize loss of life due to famine brought on by crop failure. I don’t know if that’s even possible but it certainly could be alleviated by a massive change in farming practices & adaptation to the changes that are coming. As individuals I suggest if at all possible moving to warmer climate zones & out of cities. Finally learn to grow your own food. Just my 2 cents worth.
The general takeaways include:
Overall, the Earth's climate has been in an "ice house" phase for the past few million years. We are currently at the end of a geologically brief warming period within ice house climates called an interglacial. They usually last between 10 and 15 thousand years, and their temperatures split the difference between a hot house climate and an ice house climate.
Interglacials such as the Holocene warm up much faster than they cool down. It takes thousands of years for the climate to gradually cool down from an interglacial to ice house glaciation, so humanity has plenty of time to adapt.
The long term cool down has already begun. Going back in time, the Minoan warm period was warmer than the Roman warm period, which was warmer than the Medieval warm period, which was warmer than the modern warm period. The overall downward cooling trend is already obvious in the data.
Grand solar minimums are a more noticeable cooling period within the overall downward trend of the Holocene interglacial. The little ice age (Maunder minimum) of the mid 1600's to early 1700's is an example of that. The warming vs. cooling phases of the PDO and AMO also have an effect on our climate that can last for a few decades as well.
A cooling climate causes extreme weather. The Earth's atmosphere becomes a bit more compressed, which affects the jet stream - causing large north/south oscillations that can be stuck in place for months at a time (droughts, floods, etc). Historically, cooling climates really suck... leading to crop failures, food shortages, famines, wars, and so on. It will be interesting.
The Jetstream oscillation was very apparent with the Texas freeze a few months ago, the polar vortex stretching all the way down.
And the crop failures are already happening. The growing season is getting shorter and the plants don't have time to mature / produce. The farmers get a late start planting due to flooding or extended winters, and then experience harsh weather (drought or too much rain... a big wind storm like the derecho last year), and then the ground begins to freeze early. There are not enough days of sun for the plants to fully mature.