Four years ago I did an analysis based on the work of other as well as my own fit to sunspot counts over the past four hundred years. That resulted in an estimate of an extremely cold period for the earth by the year 2030 resulting from the development of a Grand Solar Minimum in sunspot number.
The Sun has just come out of sunspot cycle 24 and is now headed into cycle 25. The earth global temperatures all depend on how strong that next cycle is. NASA has predicted a very weak cycle with a total of less than 50 sunspots.
As I mentioned in a recent post the earth’s global temperatures are headed down. Around the world we are getting reports of unusually cold periods for this time of year. Western Australia just experienced the coldest week on record for May in the past 60 years. We can expect the downward trend to accelerate over the coming months and years as the Sun continues its relative shutdown.