According to a report at Space Weather.

Newly-released measurements by high-altitude balloons show that cosmic rays in Earth’s atmosphere are intensifying.

The ongoing increase, which has been tracked since early 2015, will likely accelerate in the months and years ahead as the solar cycle swings away from Solar Max. This result is of interest to everyone from mountain climbers and air travelers to operators of high-altitude drones.

And I might add Climatologist may also be interested. In his book The Chilling Stars, Henrik Svensmark at the Danish National Space Center, proposed a brilliant and daring new theory that cosmic rays increase cloud cover, thus reducing global temperatures as cosmic rays intensity. Or, the lack cosmic rays promotes less cloud cover resulting in increased global temperatures. There is not total agreement with Svensmark’s theory among many climatologists, however, we may now have an opportunity to observe declining global temperatures as the cosmic ray intensity increases. Or, the lack of a decline in temperatures. However, we are currently seeing a slight decline.

This decline could accelerate over time as the cosmic rays continue to increase. Or not. Stay Tuned.