Wasted Light, Wasted Energy
When we light up the night sky, we’re also burning through energy, and most of it is wasted. Poorly designed, overly bright, and unshielded lights spill light into the sky instead of focusing it where it’s needed. That wasted energy translates into unnecessary carbon emissions that fuel climate change.
Light Pollution’s Carbon Footprint
Artificial light at night consumes vast amounts of electricity. In many regions, that electricity still comes from burning fossil fuels. The result: more greenhouse gases in the atmosphere and more pressure on our already fragile climate.
Outdoor lighting that’s left on all night when no one is around to benefit adds up quickly. Multiply this by millions of homes, businesses, and cities worldwide, and the impact is staggering.

There’s Hope for a Brighter (and Darker) Future
The good news is that reducing light pollution helps fight climate change directly. Every time we switch off unnecessary lights, use motion sensors, or install energy-efficient, shielded fixtures, we cut energy use and carbon emissions.
A night sky full of stars is not only beautiful – it’s a sign of a healthier planet.
Start at home – make small changes to your outdoor lighting today to protect the climate.


