Sun will be 7 % cooler by 2050 ' research

Monday, 12 Feb, 2018

The "grand minimum", as it is being called, is an especially low point in the sun's ultraviolet radiation, which could lead to a noticeably dimmer world.

Essentially, the sun has a core that is like a heart that races at some times and rests at others, and at its high point the sun's core forces more magnetic loops to throw out more radiation and generate more sunspots.

Scientists have already predicted the solar maximum and solar minimum timing and based on the data they have collected, they predict that within 30 years, the sun will experience a grand minimum. "They believe that sun will become 'unusually cool" around 2050.

While following climate change news for the past year, I have marveled at the lack of attention given scientific specialties outside of "climate science", despite the fact the foci of those studies could significantly impact global weather patterns.

According to their estimates, the grand minimum would only result in cooling the earth by about 0.25 per cent between 2020 and 2070.

The latest study, from University of California San Diego physicist Dan Lubin, was published in the journal Astrophysical Journal Letters.

The event starts with irregular intervals due to random fluctuations.

The University of California, San Diego scientists have now identified the time when the new solar minimum will take place. Temperatures were low enough to freeze the Thames River on a regular basis and freeze the Baltic Sea to such an extent that a Swedish army was able to invade Denmark in 1658 on foot by marching across the sea ice. There are more than 20 years of data from the International Ultraviolet Explorer satellite mission documenting these patterns.

The reduced energy from the Sun sets into motion a sequence of events on Earth beginning with a thinning of the stratospheric ozone layer.

However, the cooling is not uniform around the globe.

"The cooling effect of a grand minimum is only a fraction of the warming effect caused by the increasing concentration of carbon dioxide in the atmosphere", the study said. As during the Maunder Minimum period, Europe got cold while Alaska and southern Greenland got warmer.

However, Lubin and his colleagues believe otherwise and say that it is not a solution for global warming, it will only help in slowing it down.

Will this stop the damaging effects of global warming?

It found eight of the atolls and nearly three-quarters of the islands grew during the study period, lifting Tuvalu's total land area by 2.9 percent, even though sea levels in the country rose at twice the global average.