The International Dark-Sky Association (IDA) is a United States-based non-profit organization incorporated in 1988 by founders David Crawford, a professional astronomer, and Tim Hunter, a physician/amateur astronomer. The mission of the IDA is "to preserve and protect the night time environment and our heritage of dark skies through quality outdoor lighting." Light pollution is the result of outdoor lighting that is not properly shielded, allowing light to be directed into the eyes and the night sky. Light that shines into the eyes is called glare and light shining into the night sky above the horizon causes skyglow. Lighting can also cause light trespass when it is directed into areas that it is not wanted, e.g., a neighbor's yard and windows. IDA was the first organization in the dark-sky movement, and is currently the largest.
Video International Dark-Sky Association
Principal approach
IDA's principal approach is to raise awareness about the value of dark, star-filled night skies and encourage their protection and restoration through education about the problems and solutions, including outdoor lighting practices that create less light pollution. In 2011, the organization had about 5,000 members in 70 countries.
Among many concerns, IDA and related organizations are collating research on light at night's (LAN) effects on human health and ecology as a result of artificial light at night. The hypothesis is that humans have evolved over millennia exposed to roughly equal periods of light and dark. The disruption of this circadian rhythm can cause hormone imbalance in all living organisms. In the last century, artificial lighting has reduced the regular period of darkness and may negatively impact health. Light at night has been linked to increased incidence of hypertension, attention deficit disorder, obesity, diabetes and some forms of cancer.
Maps International Dark-Sky Association
International Dark Sky Places
To promote awareness about the issues, the IDA has an International Dark Sky Places program that aims "to protect locations of exceptional nighttime visages for future generations."
International Dark Sky Parks
- Natural Bridges National Monument, Utah, United States, designated 2006
- Cherry Springs State Park, Pennsylvania, United States, designated 2008
- Galloway Forest Park, Scotland, United Kingdom, designated 2009
- Zselic National Landscape Protection Area, Hungary, designated 2009
- Clayton Lake State Park, New Mexico, United States, designated 2010
- Goldendale Observatory State Park, Washington, United States, designated 2010, suspended 2016, revoked 2017
- Hortobágy National Park, Hungary, designated 2011
- The Headlands, Michigan, United States, designated 2011
- Observatory Park, Ohio, United States, designated 2011
- Big Bend National Park, Texas, United States, designated 2012
- Death Valley National Park, California, United States, designated 2013
- Chaco Culture National Historical Park, New Mexico, United States, designated 2013
- Northumberland National Park, England, United Kingdom, designated 2013
- Eifel National Park, Germany, designated 2014
- Mayland Community College Blue Ridge Observatory and Star Park, United States, designated 2014
- Grand Canyon-Parashant National Monument, Arizona, United States, designated 2014
- Hovenweep National Monument, Utah and Colorado, United States, designated 2014
- Copper Breaks State Park, Texas, United States, designated 2014
- Enchanted Rock State Natural Area, Texas, United States, designated 2014
- Elan Valley Estate, Wales, United Kingdom, designated 2015
- Yeongyang Firefly Eco Park, Yeongyang, South Korea, designated 2015
- Mayo International Dark Sky Park, County Mayo, Republic of Ireland, designated 2016
- Warrumbungle National Park, New South Wales, Australia, designated 2016
- Waterton-Glacier International Peace Park, Alberta, Canada and Montana, United States, designated 2017
- Ramon Crater, Negev Desert, Israel designated 2017
- Kartchner Caverns State Park, Arizona, United States; designated 2017
- Joshua Tree National Park, California, United States; designated 2017
- Obed Wild and Scenic River, Tennessee, United States; designated 2017
- Anza-Borrego Desert State Park, California, United States, designated January 2018
- Iriomote-Ishigaki National Park, Okinawa Prefecture, Japan; designated 2018
- Steinaker State Park, Arizona, United States; designated 2018
International Dark Sky Reserves
- Aoraki Mackenzie International Dark Sky Reserve, South Island, New Zealand, designated 2012
- Big Cypress National Preserve, Florida, United States; designated 2017
- Brecon Beacons National Park, Wales, United Kingdom, designated 2013
- Central Idaho Dark Sky Reserve, Idaho, United States, designated 2017
- Exmoor National Park, England, United Kingdom, designated 2011
- Kerry International Dark-Sky Reserve, County Kerry, Ireland, designated 2014
- The Reserve at Mont-Mégantic, Quebec, Canada, designated 2008
- Moore's Reserve (South Downs), England, designated 2016
- NamibRand Nature Reserve, Namibia, Africa, designated 2012
- Pic du Midi, France, designated 2013
- Rhön Biosphere Reserve, Germany, designated 2014
- Snowdonia National Park, Wales, designated 2015
- Westhavelland Nature Park, Germany, designated 2014
International Dark Sky Communities
- Flagstaff, Arizona, United States, designated 2001
- Borrego Springs, California, United States, designated 2009
- Sark, Channel Islands, designated 2011
- Homer Glen, Illinois, United States, designated 2011
- Coll in the Inner Hebrides of Scotland, designated 2013
- Dripping Springs, Texas, United States, designated 2014
- Beverly Shores, Indiana, United States, designated 2014
- Sedona, Arizona, United States, designated 2014
- Westcliffe and Silver Cliff, Colorado, United States, designated 2015
- Thunder Mountain Pootsee Nightsky, Arizona, United States, designated 2015
- Bon Accord, Alberta, Canada, designated August 2015
- Big Park/Village of Oak Creek, Arizona, designated 2014
- Horseshoe Bay, Texas, designated 2015
- Moffat, Scotland, designated 2016
- River Oaks, Texas, Dark Sky Friendly Development of Distinction, designated 2017
- Ketchum, Idaho, designated 2017
- Møn, Denmark & Nyord, Denmark, designated 2017
- Fountain Hills, Arizona, designated 2018
- Torrey, Utah, designated 2018
See also
- Bortle Dark-Sky Scale
- Campaign for Dark Skies (CfDS)
- CieloBuio, an Italian coordination for the protection of the night sky
- Dark-sky movement
- Dark-sky preserve
- Light pollution
- Sky brightness
References
External links
- Darksky.org: official International Dark-Sky Association website
- Darksky.org: Dark Sky Observing Sites & Destinations
- International Dark-Sky Association's channel on YouTube
- flagstaffdarkskies.org: Flagstaff Dark Skies website
Source of the article : Wikipedia
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