Nothing new under the sun.  This has all happened before.  In the middle ages there was a series of years (1816) when there was literally no summer.  Turned out it was the result of massive volcanic eruptions on the Western Pacific Ring of Fire.  That large amount of ash in the air, caused the cooling, all over the planet. https://en.wikipedia.org/wiki/Year_Without_a_Summer And if anyone has been paying attention there has been a record number of volcanic eruptions again this past year. https://earthquakes.volcanodiscovery.com/