The sky is blue!

It's the easiest thing to take for granted. But there is no guarantee that a planet gets a blue sky. How did we get so lucky? We look at the science behind our blue sky and end up amazed and grateful.

For more information check out That Time Oxygen Almost Killed Everything from the awesome folks at PBS Eons.

Carbon dioxide deepens the color of the atmosphere in the infrared portion of the spectrum (both by increasing the atmosphere's opacity and reradiating energy in the infrared part of the spectrum). Check out this cool data visualization to see how carbon dioxide and other gases affect the "color" of the atmosphere.

Send me a message. ([email protected]) Tell me what you love about Earth's blue sky.

Visit iheartthispodcast.com to find more things to love.