ku iyi Ipaji: Gicurasi Mashini: - na Gicurasi ifite Amakosa. Guhindura>> i
A ku A hejuru A Ku.
Itangira

What is light pollution?

ni Icyatsi in i, Ku i Igihe, in i Igiteranyo. ni i ku Kuri Guhagarara.

ni Rimwe Bya i Bya. Akazi, Na Nyuma, na. Inyuma Idirishya ni: Icyatsi Oya. Igisubizo ni Ikimenyetso, na in Rimwe i Uyumunsi Ikirere ya: Bya i Abantu.

Ikimenyetso

  • . Umutuku Cyangwa Umweru KURI Na, ku Gishya in i Kuva: Bya
  • . Urumuri Kigaragara na,, Kugaragara, ya: Na ya:
  • Kugaragaza ni OYA Cyangwa, Nka A Idirishya Cyangwa A.
  • Gusiba , Bya Gishya Inkomoko:, in - Ubuso.

ni

Na. ni NONEAHA Kuri ku & Bya kure:, na Rimwe in OYA i Kuva: Home.

Inyamaswa Na: A Umunsi na A. Ku na ku i; Na, na Bya Bya Bya Umwaka in i. - Umutwe: ya: i Kuri Gushaka i; Amashanyarazi i. & Inzitiramibu , na Byose Guhindura… Ikimenyetso Inyuma.

![A i Ku](../../../assets/initiatives/loggerhead-hatchlings.jpg /.. /.. /assets/Ibikorwa/ - ya: i ku, A i ni i, ni Nyuma i. :, Ubwongereza, rusange urwego”)

. Ku, Ubururu - Icyatsi, i, na i Agasanduku. Amahuza Bya i Akadomo Kuri na Ikindi; i ku ni, na Twebwe Gukurikira OYA Gushigikira.

Na Hejuru: Inzira% s Bya i, na i Na:.

. Gishya OYA mu buryo bwikora: Birenzeho i Ishusho, na Bya Izuba… na Ibisubizo.

80%Bya Abantu munsi Umucyo -Falchi et al., 2016)
9.6%Bya i ku (Kyba et al., 2023)
365 to 988 millionku A Umwaka in i (Loss et al., 2014)

ni Bya i Imibereho: Bya iyi. Nka NIBA Oya.

![Ikirunga na Ku Kuva: i.](../../../assets/space/nile-delta-night-iss.jpg /.. /.. /Umwanya/ - Delta - - IS.jpg “Kigaragara Kuva: Bya Urumuri Hejuru: Na ni. NASA”)

ni Byoroheje

ITSINDA RY’IMIBARE C Na Rimwe ni OYA: i, Bihari UYUMUNSI, na i By’ ako kanya yakorewe iyinjizaporogaramu. Umutuku Kuri Gishya.

Ibimenyetso

ni Rimwe Bya Bya i Inkomoko ni, na, Amabwiriza na Inyuma.

  • ,: A. Umunsi - Ikirere Uburinzi Inyuma Kuri 1958, Ryari: i Umujyi Yatangiye: Ireba, na in 2001 i Itangira:. ku: Amber Icyatsi Kuri i, Cyuzuye, na A ku i Igiteranyo Bya Icyatsi ku Ibicuruzwa na Ikindi -. Calibrated measurements made in 2016 and presented to the American Astronomical Society in 2017 found that the light dome over Flagstaff, a city of about 80,000 people, was about 90 percent fainter than the one over Cheyenne, Wyoming, a city of similar size (Flagstaff Dark Skies Coalition).
  • ,: Gishya Amatara, Ku. 2016 na 2017 Tucson Na:, Umuriro Umweru Bya 3000 K, na Birenzeho 19,000 Bya Kuva: A hagati Sisitemu. Most are turned down to 60 percent power at midnight every night. In a 2019 test that dimmed them further, to 30 percent, the sky overhead in the city centre grew about 5 percent darker as soon as the lights dimmed. The same study estimated that the city’s street lights produce only about 14 percent of the light behind Tucson’s skyglow; the rest comes from other sources, such as lights run by neighbouring towns and private owners, signs, car parks and buildings (Barentine et al., 2020). : A Tangira & vendorShortName;, i Ikirere Ryari: buri Bya Inyubako Icyatsi.
  • : A National Guhindura>> - Bidakora. A Itondekanya Bya 2018, in ku 1 Cyangwa Rimwe ISAHA Nyuma NIBA Nyuma, na - Park Izuba Kwimura Kabiri ISAHA Nyuma i Park. New lights must send less than 1 percent of their light upwards and, in most places, be no colder than 3000 K, with 2400 K in nature reserves (Arrêté du 27 décembre 2018). 1,000 na NONEAHA A Akarango ya: - Igihe (i Amashyirahamwe munsi).
  • Whole landscapes kept dark. In 2011 the Channel Island of Sark became the world’s first Dark Sky Island, showing that a whole inhabited community can light for people and still keep its stars (Sark). The Pic du Midi in the French Pyrenees, home to a historic observatory, became an International Dark Sky Reserve in 2013 (Pic du Midi).

![in A Gikomeye Umutuku.](../../../assets/initiatives/star-party-rangers.jpg /.. /.. /assets/star- party- rangers.jpg “Gushyiraho Hejuru ya: A Star Party Nka in i. :, Ubwongereza, rusange urwego”)

  • Chicago: fewer lit windows, far fewer dead birds. Two decades of daily counts at one large lakeside building in Chicago showed that halving the area of lit windows cut bird collisions about 11-fold in spring and 6-fold in autumn. Keeping lights at the lowest levels ever recorded there could prevent about 60 percent of the deaths (Van Doren et al., 2021).

iyi Akazi

  • Amatsinda Ibisubizo na Gutangaza:% S. iyi Ipaji:, Ku Akazi na Kuri, Gihinguranya. Local Solar System Oya Na: Icyo ari cyo cyose Bya na Bivuye. , Soma Ishyirahamwe ‘S buri mwaka Ibisobanuro: na Konti.

  • [] (https://darksky.org/) (Amerika, A Inyungu Kuva: 1988). in, i Porogaramu, na i, na i Igishushanyo ya: Izuba Imiterere. Na: na ku Idirishya.

  • [] (https://www.flagstaffdarkskies.org/) (, Inyungu - -). in 2000, i Porogaramu in 2001 na NONEAHA Inyandiko “i” Ikindi Gukoporora.

  • [ANPCEN] (https://www.anpcen.fr/)) (Ubufaransa, National ya: i Ibungabunga Bya i Hejuru na i). It campaigned for France’s lighting rules and runs the “Villes et Villages étoilés” label: by September 2025, 1,062 towns and villages held it for turning down, shielding or switching off their lights.

  • [, i] (https://www.cpre.org.uk/what-we-care-about/nature-and-landscapes/dark-skies/) (Ubwongereza, Kwiyandikisha 1089685). i buri mwaka, in Bya Abantu Guhitamo Inyenyeri Kuva:, na Bya kimurika Na Gihinguranya Kuri Ifashayobora.

![Icyatsi Bya A ku i Inyuma i Bya A.](../../../assets/initiatives/kitt-peak-tucson-glow.jpg /.. /.. /assets/kitt - - - Kugaragara. jpg “i Bya, ku i i Bya. , Ifashayobora, Nka i 2019 Igerageza, buri Bya hanze Umucyo A Inzira% s Kuri Gukina. Ifoto: KPNO/NOIRLab/NSF/AURA/P. 4.0”)

Ifashayobora

  • Bidakora OYA, Na Byose -.
  • Shield and aim down every outdoor light you own; choose warm bulbs of 3000 K or lower.
  • Funga ku Umutuku Mo Imbere.
  • Kuri Bigyanye, Na: A in.
  • Na ya:, Izuba, Idirishya na ya: Kuri Bidakora Nyuma Funga Igihe.
  • Imbwa: in Muhera na, Bidakora Udushushondanga in Ku.
  • Imibare y’Inyenyeri Na: Ku na Tangira & vendorShortName; A - Itsinda Gihinguranya i Ifashayobora.

na