In short, the sun goes through fairly predictable cycles of sunspot activity. Sunspots cause strong magnetic fields that stave off inbound cosmic rays. Less sunspots mean more cosmic rays. That in turn means more clouds and a cooler Earth.
The current cycle is months late in starting. There should be several Earth-sized black spots in that image - sunspots. This has happened before. The result was the “year without a summer” back in (I think) the 1600s. If the sunspot cycle doesn’t kick off soon - say in a few more months - we may be looking at another one next year. Literally millions will starve. And there really is not a damn thing we can do about it.
BTW, this isn’t alarmism. It’s actual science (really physics), not computer model pseudo-science ecohobbit global warming cr@p.
Sure there is. We can blame George W. Bush.