The ILP's updated GNO8/23 guidance nole on bats and artificial lighting puts avoidance, if appropriate, at the heart of best practice when lighting ecologically sensitive sites. But, as its launch event heard, understanding when or when not to light may not always be straight for ward. In his article in last month's edition of Lighting Journal, ILP Technical Manager Guy Harding highlighted an important tension at the heart of the ILP's updated GN08/23 guidance note on hats and artificial lighting[1]. This is that, while the GN (rightly) emphasises the value of avoidance- in other words, of avoiding or simply not using artificial light in the first place- this, equally rightly, has to be balanced against the important role of lighting in terms of safety and vulnerability at night.
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