catsarelittlebabies t1_ja1gzej wrote
Reply to comment by mattemer in Why is th sky pink at 8:30PM? Someone know? taken in South Jersey in Monroeville by Jonny683
Can someone please explain why greenhouses would cause this?
mattemer t1_ja1heyt wrote
Their UV lights at night to warm up the plants. It's not all night long (and not every night) and only really notice on a cloudy night.
catsarelittlebabies t1_ja2ma9z wrote
Gotcha! Makes sense. Thank you!
mattemer t1_ja32pcq wrote
Welcome!
Upper-Discount5060 t1_ja1was3 wrote
I was wondering the same thing but felt like everyone else knew.
raisethesong t1_ja4diqq wrote
Red and blue light are the most useful/efficient wavelengths for plants to photosynthesize with, so greenhouses prefer to use those colors together in their grow lights. Those two colors together usually create a pink glow like this
dethskwirl t1_ja3pnns wrote
swamp gas
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