ขนาดวิดีโอ: 1280 X 720853 X 480640 X 360
แสดงแผงควบคุมโปรแกรมเล่น
เล่นอัตโนมัติ
เล่นใหม่
I didn't know about this! I will do my part to educate myself and others about light pollution! Thank you for sharing this!
Interesting topic I don't think most people are aware of.OPB is so awesome.
Portland and salem light up the night sky for us living on the east side of cascades quite a lot
I envy her. Congrats on what I can only imagine is a dream job for an outdoor enthusiest.
Cars are a major cause of light pollution. Think of all the millions of miles of highway that need to be lit every night, whereas train tracks require no lighting but the train itself.
She has such an amazing job. I've lived here in Oregon my whole life and never been to that dark patch by the Steen moutains
![Saving the Dark | Documentary | Light Pollution [HD]](http://i.ytimg.com/vi/6fHxNn-FEnc/mqdefault.jpg)
I didn't know about this! I will do my part to educate myself and others about light pollution! Thank you for sharing this!
Interesting topic I don't think most people are aware of.
OPB is so awesome.
Portland and salem light up the night sky for us living on the east side of cascades quite a lot
I envy her. Congrats on what I can only imagine is a dream job for an outdoor enthusiest.
Cars are a major cause of light pollution. Think of all the millions of miles of highway that need to be lit every night, whereas train tracks require no lighting but the train itself.
She has such an amazing job. I've lived here in Oregon my whole life and never been to that dark patch by the Steen moutains