Earth's mysterious red glow, explained - Zoe Pierrat

Earth's mysterious red glow, explained - Zoe Pierrat with tags chlorophyll fluorescence, red glow, earth red glow, photosynthesis, light waves, light wavelength, amazon basin, evergreen forest, croplands, photosynthetic organisms, chloroplast, chlorophyll, glucose, earths oxygen, excited electrons, electrons, healthy ecosystem, plant stress, plants, trees, algae, phytoplankton, drought, science, education, animation, zoe pierrat, denis chapon, animation workshop, ted, ted-ed, ted ed, teded, ted education

Explore the phenomenon and uses of chlorophyll fluorescence, a small amount of light emitted by plants during photosynthesis.

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In 2009, a satellite circled Earth, scanning and sorting the wavelengths reflecting off the planet’s surface. Researchers noticed something baffling: an unexpected wavelength of unknown origin. They tried looking at Earth with only this wavelength, and saw the planet covered in a red hue of varying intensity. So, what was going on? Zoe Pierrat explores the science of chlorophyll fluorescence.

Lesson by Zoe Pierrat, directed by Denis Chapon, The Animation Workshop.

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