American Medical Association on LED lights

imagesAMA Adopts Guidance to Reduce Harm from High Intensity Street Lights

CHICAGO – Strong arguments exist for overhauling the lighting systems on U.S. roadways with light emitting diodes (LED), but conversions to improper LED technology can have adverse consequences. In response, physicians at the Annual Meeting of the American Medical Association (AMA) today adopted guidance for communities on selecting among LED lighting options to minimize potential harmful human and environmental effects.

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White sky at night not a city bird’s delight

b55fc63c-064e-4273-824d-54acf5c7964c-1020x612Mounting evidence that artificial light, and newer white light street lighting in particular, is causing measurable harm to wildlife. “This study, the first of its kind, shows that light pollution increases stress hormone concentrations in free-living songbirds. It also suggests that different light spectra may affect physiology differently, thus, using different spectra for street lights may potentially reduce the disturbances caused by light pollution to free-living wildlife.” Read more at

Ballycroy Dark Sky Park proposal makes international headlines

a2f882b272132d15ee09a1716bf9784b“Georgia MacMillan, a graduate in outdoor education at Galway-Mayo Institute of Technology (Mayo campus) has a dream.” And to help realise her dream of making Ballycroy National Park into a world class Dark Sky Park she has been working with National Parks and Wildlife Service and Mayo County Council, TCD and local residents and businesses to measure the sky quality and make changes to conserve the night sky as a valuable resource in the area. You can read the full article from Connaught Tribune at

Dark Sky initiative launched in Lough Gur, Co. Limerick

11138176_1575665702708617_2226805866582110837_nFollowing a public talk on light pollution in Lough Gur Heritage Center on Saturday night the Lough Gur Dark Skies Park Initative was launched. Work has already begun on the lengthy process of obtaining official Dark Sky status from the International Dark Sky Association. Despite being only 20km from the centre of Limerick City, we recorded a SQM-L reading of 21.1 during a gap in the clouds. To stay in touch with the initative visit the facebook page at Continue reading

Dark Sky Week

darkskyweekCreated in 2003 by high-school student Jennifer Barlow, Dark Sky Week has become a worldwide event and a key component of Global Astronomy Month. Each year it is held in April around Earth Day and Astronomy Day. This year celebrations begin Monday, April 13, and run through Sunday, April 19. Continue reading

IAS Light Pollution Talk

bre_esa_wwwFrom the Irish Astronomical Society:
The IAS February meeting will take place on Monday 23rd February at 8PM in Ely House, Dublin 2.
The speaker will be Dr Brian Espey from Trinity College Dublin.
The topic is Light Pollution.
This is a free event and all are welcome.