Why the changing colour of our streetlights could be a danger for insect populations

By Douglas Boyes, PhD Researcher, Newcastle University

Life on Earth has evolved alongside predictable cycles of day and night. But this pattern has become increasingly blurred. Between 2012 and 2016, satellite measurements revealed that the global area polluted by artificial light grew by 2% each year, intruding ever deeper into biodiversity hotspots like tropical forests.

In this context, there is an important change taking place in the UK: the replacement of older, less energy-efficient sodium street-lighting…

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