Prof John Hearnshaw: Dark skies and light trespass - a podcast by RNZ

Astrotourism is a fast growing niche tourism industry worldwide, and New Zealand, which has five Dark Sky Sanctuaries, is playing a leading role. Renowned astronomer John Hearnshaw has just launched the Aotearoa Astrotourism Academy, a school to train aspiring astrotourism guides. Professor Hearnshaw is also poised to release the New Zealand Dark Sky Handbook, a manual for people interested in the protection of dark skies. He says light pollution is one of the great environmental catastrophes of the last half century, all the more insidious because many people are blissfully unaware of the problem.

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