According to NASA, the Sun will reach its lowest activity in over two centuries in 2020. As a result of it going into a natural period of hibernation, Earth could see temperatures drop, resulting in food shortages on a global scale. The temperature could also drop by as much as one degree Celsius over a period of roughly 12 months—an incremental yet significant change in climate conditions that could have unpredictable results.

According to NASA, the Sun will reach its lowest activity in over two centuries in 2020. As a result of it going into a natural period of hibernation, Earth could see temperatures drop, resulting in food shortages on a global scale. The temperature could also drop by as much as one degree Celsius over a period of roughly 12 months—an incremental yet significant change in climate conditions that could have unpredictable results.

Valentina Zharkova, a professor at Northumbria University's department of mathematics, physics, and electrical engineering, told the Sun that the period will be an expanded version of the solar minimums that naturally occur every 11 years. However, rather than lasting only a few years, the "Grand Solar Minimum" could last for up to 33 years.

The professor, who has published multiple scientific papers on the subject, said:

"The Sun is approaching a hibernation period.