Green Madness: Energy-Efficient LED Lighting Increases Energy Consumption & Light Pollution

  • Date: 24/11/17
  • iNews

As LED lights have become more efficient and cheaper people have chosen to use more of them – a process known as the “rebound effect”.

The Earth’s surface is nearly ten per cent brighter than it was four years ago as artificial light is turned up and introduced to new areas.

The increase in light pollution leads to a ‘loss of night’ that is bad for people, animal and plants as it tricks them into thinking it is still daytime way after it has naturally become dark, a new study warns.

And if the current rate of artificial light growth continues, then by 2050 the illuminated area of the Earth at nighttime will be twice what it was in 2012, it finds.

Much of the increase in brightness, which has jumped by 2 per cent a year over the past four years, has come as households and local authorities switch to low-coast LED (light emitting diode) lights from conventional electrical filaments, gas and plasma ones, to save on energy.

The ‘rebound effect’

But as LED lights become more efficient and cheaper people have chosen to use more of them, rather than holding on to their energy savings – a process known as the “rebound effect”.

As a result, countries such as the UK and Germany have become increasingly bright, the study finds.

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