1. It will get cooler.
The sun is what keeps us living. The sun directs seasons and the overall temperature of our atmosphere. When the sun is stronger, it only makes sense that the world will be a bit warmer. However, when the sun goes into a lower energy stage, the world will likely cool down. The atmosphere is something that always tries to keep itself in balance. So, if the sun cools down, it is impossible for one area to be brutally cold and the rest of the world to remain warm. No- the whole world will have to cool to keep the atmosphere in balance with itself. A lack of balance would throw off the atmosphere, because the atmosphere's mission really is to keep itself balanced.
And for some more information, this would indeed mean cooler summers and colder winters.
2. Global Warming topics will spin out of control.
As soon as this lower sunspot phase begins to have effects on temperatures, both pro and anti Global Warming activists will spring into action to defend their theories and attack the others. One argument will be that Global Warming is simply a solar-controlled event, while another argument will involve the notion that Global Warming still exists but is temporarily hampered by the sunspot cycle. The meteorology and science communities will be ordering double doses of aspirin if this forecast comes to pass.
3. Some crop issues will occur, but mass famine is unlikely.
While it is true we will have not seen this sort of hibernation from the sun since the Maunder Minimum in the 1600's (Figure 2), we must remember we live in the 21st century. Technologies have advanced lightyears beyond what there was in the 1600s.
400 years of observed sunspots, from the 1600s to the early 2000s.
Now, let's set the record straight. I am not nearly an expert climatologist, and while forecasts 5 days plus may be unreliable (much less 10 years), the Sun is a special variable that is not quickly changing. There is something to be said for solar flares, but in general, the Sun is a slowly changing beast, which lets me know that the forecast at the top probably has some bite as well as bark to it.