The easiest thing you can do to participate is to turn off your outside lights at night. Try not to leave your porch light on constantly, consider motion sensor lights instead. Especially avoid leaving outside lights on without motion sensors when you're not home for extended periods of time. The less artificial lights we leave on outside, the more stars we can see 🌟🤩 and help not to disrupt wildlife migration patterns.
The link to the International Dark-Sky Association is HERE.
The link to the Wimberley Valley, Texas (U.S.) page is HERE.
