8:30 – 9:30 PM, Saturday, March 28, 2018 is Earth Hour

8:30 – 9:30 PM, Saturday, March 28, 2018 is Earth Hour.

The Earth Hour website: “Starting as a symbolic lights out event in Sydney in 2007, Earth Hour is now the world’s largest grassroots movement for the environment, inspiring millions of people to take action for our planet and nature.”

As amateur astronomers we are particularly aware of distracting lighting and loss of the night in our Greater Pittsburgh Area over increasingly short periods of years. Night is needed not only to see the stars but also for the biology of humans and other living things. Over-bright lights and unshielded poorly aimed light is not only wasteful energy inefficiency but is also not doing what it is meant to accomplish. Let Earth Hour with its basis in grassroots, remind us of ways to make a difference even at the home – neighborhood by effecting good lighting that recognizes glare, light trespass, shielding, color temperature of LED lighting, etc. and to ask community leaders and officials to do the same.

The Amateur Astronomers Association of Pittsburgh often talks about lighting at our outreach events and shares many members with the Pittsburgh Chapter of the International Dark Sky Association.

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