This, they say, will lead to a phenomenon known as the 'Maunder minimum' - which has previously been known as a mini ice age when it hit between 1646 and 1715, even causing London's River Thames to freeze over.
They said the modern phenomenon was being fuelled by our use of devices late at night which emit blue light.
Joshua Zeichner, assistant professor of dermatology at Mount Sinai Hospital in New York City, how frequently we shower and what we perceive as body odor is "really more of a cultural phenomenon.
Harvard behavioral science professors Alison Wood Brooks and Francesca Gino, along with University of Pennsylvania business professor Maurice Schweitzer, discovered this phenomenon through a series of experiments conducted over the past few years.
This phenomenon has its own background.
Obama repeated arguments he cites often to promote his climate change effort, including a litany of grim facts and figures about rising temperatures, swelling seas and vanishing sea ice, dismissing skeptics of the phenomenon or those who refuse to act on it as guilty of "negligence" and "dereliction of duty.
There are reasons I think can accounting for the phenomenon.
In recent years, a strange phenomenon has occurred in our country—people are very cautious of helping others, especially helping strangers, because a few people are getting involved in trouble when helping others.
The reform of this phenomenon is certainly not easy.
Almost everywhere in China you can see the phenomenon: parents are waiting anxiously for their children out of the school, so many people and vehicles are crowded at the gate of school just like a market .
With the emergence of the phenomenon, some people hold the concept that the business experience would help them, while others hold negative view.
The majority of Chinese show agreementabout this phenomenon, though there are more or less Chinese stand on theopposite side.
Such phenomenon is so common today.
The aging society is getting more and more obvious, such phenomenon has been catch mass media's attention.
