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Are LEDs really the future of electric lights or has this today's solution become our tomorrow's problem?
A new study published in the journal Science Advances has claimed that LED lights might be doing more harm than good. As per satellite data collected by the researchers, the nights in Earth are getting brighter and brighter and this has increased what is known as 'light pollution'.

As per the data, outdoor lit surfaces have grown by 2.2 per cent in the last four years.  

But why should we be worried about this? Increased brightness during night not only disrupts the natural darkness but also disturbs the biological clock of humans. This can have drastic effects and increased chances of critical diseases like cancer and diabetes. At the same time, for animals, this can be fatal. 

But if light is the problem, why blame LED lights? The reason is that LED lights consume much less electricity than traditional halogen bulbs as well as CFLs. This in turn prompts people to use more lights since it does not cost them much.  

One of the conclusions of the research is that the developed countries are more to be blamed for this. As the growth pattern can be seen in South America, Africa, and Asia whereas countries that are suffering from war such as Syria and Yemen have seen a decline in light pollution. 

The researchers have warned that the real situation might be even worse as many LEDs have a blue coloured light and the satellite that collected this data is unable to pick the blue colour's wavelength.  

But what is the solution to this problem? The solutions are widespread and broad ranged including promotion of using lesser electricity, using LEDs that are amber in colour instead of blue or violet and bringing in policy changes.

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