a boost in light pollution worldwide has dire consequences for human and animal health, researchers say
David Oliver Lennon took the most daring city view and replaced the bright lights with Tasman\'s night sky.
The result is sublime.
Image source: non-geographic pattern of artificial lighting changes on YouTube/David Oliver.
Source: they should bring about an energy revolution.
But researchers say the popularity of LED lights is driving an increase in global light pollution, with dire consequences for human and animal health.
The research in the journal Scientific Progress, based on satellite data, shows that the Earth\'s night is getting brighter and brighter, and the outdoor surface of artificial lighting is growing at a rate of 2.
2% per year from 2012 to 2016.
Experts say it\'s a problem because of the night.
Time lights are known to disrupt our biological clocks and increase the risk of cancer, diabetes and depression.
These lights can kill for animals
Whether it\'s by attracting insects or missing migratory birds or turtles.
Lead author Chris Kyba explains that the problem is not just the LED lights themselves, because they need less power to provide the same amount of light, so they are more efficient, physicists at the German Center for Earth science research
Instead, he told reporters in a conference call discussing the study that people have been installing more and more lights.
\"We will light up something that we didn\'t light up before, like a bike lane through a park or a section of the highway out of town, and it didn\'t light up in the past,\" he said . \".
\"So the new uses of all these lights offset your savings to some extent.
Experts call it the \"rebound effect\", which can be seen with fuel --
The same is true of efficient cars.
People may buy a car that requires less fuel and then decide to drive it more often, or stay away from work and extend their commute.
Geographic patterns in changes in artificial lighting.
Source: supply first global night scene research based on the first-
Radiator specially designed for night
Called Visible/Infrared imaging radiator kit (VIIRS).
Installation of VIIRS at the National Oceanic and Atmospheric Administration (NOAA)
The satellite, called Suomi NPP, has been orbiting the Earth since October 2011.
The researchers only analyzed the night.
Time lights for the period October to avoid an increase in solar lights.
\"With a few exceptions, growth in lighting has occurred in South America, Africa and Asia,\" the report said . \".
The decline in lighting is rare, but it is obvious in the war --
Torn places like Syria and Yemen.
Some of the world\'s brightest regions, including Italy, the Netherlands, Spain and the United States, are relatively stable.
From space observation to changes in lighting technology in Milan, Italy.
Source: supply but, for example, despite Milan switching to LED lights at 2012-
Growth in other parts of Italy during the period 2016.
\"In fact, we didn\'t see the country getting darker, which means there are new lights elsewhere, or brighter lights installed in some other cities that make up for the difference, kyba said.
The researchers also warned that the data could be underestimated because the satellite could not receive the blue wavelength highlighted in many LED lights.
\"Even if we don\'t measure the growth of these countries on satellites, we can say with considerable confidence that kyba said:\" In terms of how humans perceive light, their brightness is almost certainly increasing. \".
Solutions to \"key problems\"
The authors of the study, Franz Holk, an ecologist at the lepenitz Institute of Freshwater Ecology and fisheries, said the data showed that \"this is a very critical issue.
\"Many people use electric lights at night without really considering the cost,\" he told reporters . \".
Seeing the big picture above, he added, \"completely changed the way I use light at night. ” Excess night-
Time light not only destroys natural habitats and makes it impossible to watch stars, but also spends nearly $7 billion a year on \"negative effects on wildlife, health, astronomy and waste of energy, according to a 2010 study in the journal Ecological Economics.
The latest findings \"are not surprising to those who are concerned about this issue,\" said Travis langko, assistant professor of architecture and space science, the University of Southern California\'s School of Architecture\'s Biological Sciences.
Longcore, who did not participate in the study, described 2.
The annual growth rate is \"unsustainable \". ” The Arizona-
International Dark headquarters
J. executive director of Sky Association.
Scott Feierabend said the study \"confirms the information IDA has conveyed over the years about the hazards of artificial night lights \".
Solutions include using low-intensity lights, turning off lights when people leave an area, and choosing LED lights in yellow instead of blue or purple, experts say, because these are the most harmful to animals and humans.
For example, people also need to question their assumptions that night.
Time makes the world safer.
\"There is no solid evidence that additional light can reduce crime,\" Longcore told AFP . \".
\"In fact, there is some evidence that additional lights can increase the crime because criminals can see what they are doing,\" he added . \".
\"We don\'t think many things are necessary.
They went too far.