Covid19 Reveals How Much Light is Wasted Each Night

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Back in spring under the first UK lockdown, I went on numerous night walks in my home city of Manchester. I was struck by several things. Without traffic or trains, birdsong prevailed in this peculiar quietness. The air was fresh and crisp without the usual pollution. Yet, the artificial lights of the city at night still blazed, for no one. – Nick Dunn UK and has an Affiliation with IDA