Light is Energy: Estimating the Impact of Light Pollution on Climate Change

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The classic image of the world at night shows the light from countless bulbs pouring into space. By definition, the light reaching a VIIRS night band sensor, flown on satellites orbiting at 824 kilometers elevation… Read more

Artificial Light at Night: State of the Science 2022 Report

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by John Barentine Dark Sky Consulting, LLC To confront problems effectively, we must understand them. And to tackle the problem of light pollution around the world, we must become familiar with the knowns and the… Read more

International Dark Sky Places Program Advocacy – A Review of 2020-2021 Annual Reports

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One of the primary goals of an International Dark Sky Place is to encourage communities and protected areas to become environmental leaders by communicating the importance of dark skies to the general public and providing… Read more

Register Now for the Responsible Outdoor Lighting at Night Conference (ROLAN 2022)

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The International Dark-Sky Association is pleased to announce that we are a founding partner of the Responsible Outdoor Lighting at Night Conference (ROLAN 2022). ROLAN 2022 is a two‐day online conference taking place May 12-13… Read more

Translating Research into Practice

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The following is a guest post submitted by Catherine Pérez Vega and Karolina Zielinska-Dabkowska (IDA Technical Committee) about their recently published article “A Systematic Review for Establishing Relevant Environmental Parameters for Urban Lighting: Translating Research… Read more

Globe at Night 2022: Can You See the Stars?

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Every year, the Globe at Night international community science campaign raises awareness about the impact of light pollution by inviting community scientists to measure and submit night sky brightness observations. All you need is a computer, tablet… Read more

Artificial Light Impacting Coral Reef Species: A Case Study

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Each month, IDA’s Director of Conservation, Ashley Wilson, tackles a new piece of scientific research regarding light pollution and breaks it down for us in a blog post. As a resident of sunny Florida, I… Read more

New App Aims to Better Understand Nighttime Satellite Data

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A team of community scientists and researchers from the Helmholtz Centre Potsdam – GFZ German Research Centre for Geosciences have developed a new mobile app called ‘Nachtlicht’ (NightLights). The app allows participants to record various… Read more

Pollinator Week 2021: Celebrating Nocturnal Pollinators

Bat pollinating a flower for pollinator week 2021

The busy bee. The fluttering butterfly. The thirsty, feisty hummingbird. These are the creatures we most commonly associate with pollination. And while their roles are central to this process, the concept of “out of sight… Read more

IDA Celebrates Endangered Species Day

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Every year on the third Friday in May, people all around the world celebrate Endangered Species Day by learning about and taking action to protect threatened and endangered species. Light pollution has significant impacts on… Read more