“We’ve taken a lot of the energy savings and just lit additional places,” Hartley said. It’s a classic example of the Jevons paradox, in which efficiency gains (such as better automobile gas mileage) are countered by an increase in consumption (people driving more often).
In essence, Hartley and others say, we’ve traded one kind of pollution for another.
But unlike many environmental issues, light pollution is a problem researchers say could disappear with the flick of a switch. Solutions include turning off unnecessary lights and putting shields on streetlights to direct beams downward.
We're killing the night, and that's going to kill us.
Light pollution experts worry the bluer nights could disrupt animal and human health.
Human illumination of the planet is growing in range and intensity by about 2% a year, creating a problem that can be compared to climate change, according to a team of biologists from the University of Exeter.
Beneath the surface of one of Germany’s deepest lakes, researchers are studying the hidden effects of artificial light.
Urban light pollution is a large-scale issue, but individual households can help their communities turn down the lumens while still ensuring safety.
Jenny Ouyang, associate professor in the College of Science’s Department of Biology grew up in Xi’an, a large, brightly lit city in China. According to Ouyang, by 2025, over 80% of the world’s population will live under light polluted skies, which raises concern for human and wildlife wellbeing. Her background and the increased light pollution around the world continue to inspire her interest in urban ecology and a desire to build greener cities.
A first-of-its-kind study shows that artificial lights deter nocturnal insects that flowers rely on.
The nighttime face of the planet is getting brighter and brighter, and that may be doing significant harm to the health of human beings, animals and the ecosystem as a whole.
Scientists are urging people to turn off their lights and let pigeons get some rest.
Researchers have discovered that the early bloom of some tree buds might be down to increasing amounts of light pollution.
Most of the world’s inhabitants live under night skies blanketed by light, blocking out the stars, according to a new study.
A new “dark sky atlas” suggests that light pollution is drowning out the stars faster than ever.
Twas quite a show: a train of illuminated dots moving across the sky, many of them as bright as Polaris, the north star. These were not new astronomical objects, however. Rather, they were the first tranche of satellites for Starlink, a project intended to provide internet access across the globe.
Light pollution is excessive, misdirected, or obtrusive artificial (usually outdoor) light. Too much light pollution has consequences: it washes out starlight in the night sky, interferes with astronomical research, disrupts ecosystems, has adverse health effects and wastes energy.
Booming businesses in low orbit will be bad for astronomy, but the outlook can be improved.
Electric lights have revolutionized our lives, but as illumination increases, the toll on wildlife and human health is becoming harder to ignore.
The Globe at Night program is an international citizen-science campaign to raise public awareness of the impact of light pollution by inviting citizen-scientists to measure their night sky brightness and submit their observations from a computer or smart phone.
Less than 100 years ago, everyone could look up and see a spectacular starry night sky. Now, millions of children across the globe will never experience the Milky Way where they live. The increased and widespread use of artificial light at night is not only impairing our view of the universe, it is adversely affecting our environment, our safety, our energy consumption and our health.
People all over the world are living under the nighttime glow of artificial light, and it is causing big problems for humans, wildlife, and the environment. There is a global movement to reduce light pollution, and everyone can help.