Seeing the sight of stars scattered in the sky is an impressive sight. However, over time, the stars in the sky are increasingly difficult to see by the human eye. What's behind this phenomenon?
According to a new study, worsening light pollution is to blame. From 2011 to 2022, a study entitled Globe at Night involves 50,000 people observing the sky in various parts of the world.
As quoted by us from Phsyorg, Saturday (21/1/2022), on most of the Earth's surface, the sky apparently continues to be brightened by light pollution, by 9.6% per year. This is what makes the stars less and less visible, unlike when the sky is dark.
For example, a child who was born in an area where 250 stars could be seen would likely 18 years later, the number of stars visible would be less than 100 in that same location.
The research, published in the journal Science, was conducted by a team from the German Research Center for Geosciences and the National Science Foundation (NSF) in the United States.
"The increase in skyglow over the last decade underscores the importance of redoubled efforts and developing new strategies to protect the dark sky," said one of the researchers, Connie Walker.
"Light pollution is a serious problem, not only for those of us who want to see the stars, but also for wildlife. It also wastes electricity and money, making the target of tackling climate change even more difficult to achieve," said David Rothery, professor at Open University, UK.
"Local regulators have to act. They have to tighten up again having bright logos and so on all night long," said one suggestion.