Disruption of natural light cycles is particularly acute with newer LED Light Emitting Diode lights, which are increasingly being adopted globally for their energy efficiency benefits. A recent review in Science has outlined five key strategies to reduce lighting globally, which will not necessarily compromise its benefits.
They are:. Given the extent and severity consequences, the dearth of light pollution research in Africa is a surprising oversight.
Africa still remains one of the least light polluted continents , but this is rapidly changing with the expansion of lighting infrastructure, which it is closely tied with economic development. This is especially true for rural areas that may increasingly gain access to electrical grids and LED lights. The recent global atlas of artificial skyglow did not make any ground-based measurements in Africa nor South America or most of Asia , and serves as an example of how desperately a more robust and widespread understanding is required of its impacts.
Light pollution is a pernicious and increasingly understood global change driver. While many Africans may still see the Milky Way, the expansion of lighting infrastructure is imminent. As with other global change drivers, the continent is at an important juncture to ensure that its economic trajectory does not compromise its human and environmental health. How best to do so for light pollution still remains to be decided. Watch a clip of the documentary The City Dark to learn how lighting design can reduce light pollution and also conserve energy.
Search for:. Light Pollution Wastes Energy and Money. Environmental responsibility requires energy efficiency and conservation Installing quality outdoor lighting could cut energy use by 60—70 percent, save billions of dollars and cut carbon emissions.
Outdoor lighting should be fully shielded and direct light down where it is needed, not into the sky. Fully shielded fixtures can provide the same level of illumination on the ground as unshielded ones, but with less energy and cost.
It might also depend on the time of the day or the season in which you use your lights. If you have an electric rate of 20 cents per kilowatt-hour, then you can save about 1. Turning the lights in your home can help save a significant amount of money per kilowatt hours and reduce your electricity bill every month.
However, your savings would grow more rapidly when many people will do the same movement. One of the best examples is to have energy-saving and sustainability movements. One of the energy-saving and sustainability movements is the Lights Off Cornell.
Cornell also helps encourage the students and the young ones to reduce their power consumption. You can save more energy in your house by turning off the lights using lighting controls.
The lighting controls such as motion detectors or timers and dimmers can help reduce your energy consumption by automatically controlling your lights efficiently. One of the technological innovations you can utilize is the motion sensor lights. On the other hand, you can utilize dimmers as an ideal lighting control that allows you to reduce wattage and power output that can help you save energy.
The motion sensors are also an ideal lighting control that can automatically turn your lights on when they can detect motion or movement. They can also automatically turn your lights off when the activity stopped. Hence, employing lighting controls will ensure that you can reduce wasted energy without checking each of your lights personally. Turning off the lights when you leave your room can help save energy. It can also help reduce carbon emission and other harmful greenhouse gases.
Hence, turning off your lights is a simple way to help protect the environment and save the planet. It is essential to follow the general rules of thumb when it comes to turning off your lights. Turning off your lights will also help reduce the use of non-renewable resources that are harmful to the environment.
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