The Sun might be unusually cool by 2050, according to a new study. A grand-minimum, according to the study, is a period of very low solar activity, which will lead to lower temperature on earth. During the grand-minimum in the mid-17th century, named Maunder Minimum, the temperature dropped low enough to freeze the Thames River. In spite of the chilling weather in Europe during the Maunder Minimum, other areas such as Alaska and southern Greenland warmed. The finding has been published in the Chicago-based journal Astrophysical Journal Letters.

Source: Punch February 12, 2018 09:00 UTC