Urban light #pollution: why we’re all living with permanent ’mini #jetlag'
▻http://www.theguardian.com/cities/2014/oct/23/-sp-urban-light-pollution-permanent-mini-jetlag-health-unnatural-bed
Astronomer Dr Jason Pun of the Hong Kong University department of physics has been studying light pollution for nearly a decade. He says people often ask him if he’s crazy. “‘Hong Kong is supposed to be bright,’ they say. ‘Why are you even talking about light being some kind of pollution?’”