Use Light only if it is needed.
All light should have a clear purpose. Consider how the use of light will impact the area, including wildlife and their habitats.
Protecting the night sky
The Town of Huntsville is committed to becoming a dark sky-friendly community, a place where the natural nightscape is protected and cherished as part of our shared heritage. In 2016, Council passed the Outdoor Lighting by-law aimed at reducing light pollution and preserving our view of the stars for generations to come.
With a ten-year transition period set to wrap up in 2026, we’re now moving into full implementation and enforcement of the outdoor lighting by-law. We’re working closely with residents, businesses, and visitors to make this change as simple and effective as possible, while also helping to safeguard the beauty and serenity of our night skies.
What is light pollution
Light pollution is the human-made alteration of outdoor light levels from those occurring naturally. When we over-light, fail to use timers and sensors, misdirect or use the wrong colour of light, we negatively affect many parts of our world.
Harmful effects of light pollution
Light pollution can seem subtle, but its impact is real — on wildlife, on human health, and on our ability to experience the quiet wonder of a starry night. Together, we can protect what makes Huntsville special and ensure our skies stay dark, clear, and full of stars. Learn about four effects of light pollution:
Destroys critical wildlife habitat
Plants and animals depend on Earth's daily light and dark cycle to govern life-sustaining behaviours. Research shows that artificial light at night has adverse and even deadly effects on many species.
Wastes energy and money
Most outdoor lighting is wasted. This energy waste increases greenhouse gas emissions contributing to climate change and wastes billions of dollars each year.
Robs us of our night sky heritage
Our ancestors experienced a night sky that inspired science, religion, philosophy, art and literature. Now, millions of children across the globe will never know the wonder of seeing the Milky Way.
Harms human health
Studies indicate that artificial light at night negatively affects human health by increasing our risks for obesity, sleep disorders, depression, diabetes, breast cancer and more.
Components of light pollution
Glare — excessive brightness that causes visual discomfort
Sky glow — brightening of the night sky over inhabited areas
Light trespass — light falling where it is not intended or needed
Clutter — bright, confusing, and excessive groupings of light sources
Five lighting principles for responsible outdoor lighting
Tips For a Dark Sky Friendly Home or Business
- Use only fully shielded fixtures for all outdoor lighting, so lights shine down, not up or outward.
- Use only the right amount of light needed. Too much light is wasteful and harms wildlife.
- Install timers and dimmer switches and turn off lights when not in use. If you must have security lighting, use motion sensors.
- Turn off lights in office buildings and homes when not in use.
- Use only lighting with a colour temperature of 3000 K and below to reduce the blue cool light that’s more harmful to many animal species.
- Work with your neighbours and local governments to ensure outdoor lighting isn’t harming the wildlife in your area.
Make the Switch: Dark Sky-Friendly Lighting is Simple and Affordable
Dark sky-friendly lighting does more than just reduce light pollution. It enhances the aesthetic appeal of your space and provides more efficient, targeted lighting. Not only does this create a safer, more pleasant environment, it also contributes to reducing energy costs, benefiting both your wallet and the planet.
Transitioning to dark sky-friendly lighting is easier than you might think – and it doesn’t have to come with a hefty price tag. Upgrading to fully shielded lights that direct light downward can be done with minimal effort and cost. Many affordable options are available locally, ensuring your outdoor spaces remain well-lit and environmentally responsible.
Supporting a Transition to Dark Sky Lighting
The Town of Huntsville will continue to provide educational resources to help residents, visitors, and businesses understand the importance of preserving a pollution-free night sky.
For a complete list of regulations, please refer to the Outdoor Lighting by-law. Questions or concerns about outdoor lighting in your neighbourhood? Email our By-law Enforcement Officer or call 705-789-1751.