Why Are Leaves Green? Part 1

MinuteEarth · 1M views · 2013 · 2:21

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Biology & biotechnologyScientific method & science communicationexplainer

Why Worldbuilding Stack Exchange recommends it

Worldbuilding Stack Exchange users link it when answering questions about plant color on alien worlds, since it shows the reason for green leaves is not settled.

Recommended by 2 people across 2 different months, 2014 to 2016.

What it is

A 2m21s MinuteEarth animated explainer on why plants are green when chlorophyll absorbs red and blue light well. It asks why plants would reflect green light instead of absorbing every color and looking black. Created by Henry Reich and team.

What people said

Recommends user321 · 2014-10 · Worldbuilding Stack Exchange · on “What environment would make leaves light blue?”

Take a look at this video about why leaves are actually green [this video] as it shows the reason why leaves are green is mostly unknown. So I guess any good reason otherwise will cover your request. Maybe the sun in your world will make other lightwaves witch plants can benefit the most with blue leaves.

Recommends Atlas the Worldbuilder · 2016-12 · Worldbuilding Stack Exchange · on “Plants under different sunlight”

I can answer that! Well...kinda, I can give some ideas. As you might remember from school, plants are green because of chlorophyll, a substance plants use to absorb sunlight to make food. It's green because the most intense color light emitted by Sol is green; if they take in too much at once, then it basically hurts the plant. So green plants are the most efficient at absorbing light from a G-class star. Other such chemical compounds have colors like orange, red, yellow, even purple. These are less efficient than chlorophyll, but they're good for fallback options. These might be better, tho, around other types of stars. Which ones would work best where, I dunno, but it's safe to mention tha

Cites PipperChip · 2015-04 · Worldbuilding Stack Exchange · on “Red colored world”

I am going to ignore many of the more philosophical point on color, and really just focus on what could make a human visitor see mostly red (light of wavelengths of about 620-750 nm). Making the Sky Red The sky is blue, on earth, for many different reasons. The simplest thing to blame for the earth's blue sky is Rayleigh scattering [LINK] . This is kind of complicated, so most children do not get this answer when they ask why the sky is blue. The short explanation is that the sun's light, which does not produce an even amount light [LINK] of all wavelengths, get scattered as it hits the atmosphere. The shorter wavelength light, blue light, get scattered more easily than the red. So, when the