A study published in the journal Science has found that people around the world are seeing fewer and fewer stars in the night sky due to light pollution. The change in skyglow over time has not previously been measured globally and the study used data from the “Globe at Night” Citizen Science Project, which has been running since 2006, to analyse more than 50,000 naked-eye observations by citizen scientists worldwide from 2011 to 2022. The results show that the change in star visibility can be explained by an increase in the sky brightness of 7-10 per cent per year, which is faster than satellite measurements of artificial light emissions on Earth would suggest. This “skyglow” affects both diurnal and nocturnal animals and should be the focus of research, as it has serious effects on the environment and destroys an important part of our cultural heritage.
Today: December 10, 2023