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Measuring the Planet’s Health in Vibrant Shades of Green

From space, Earth appears as a blue marble. But some researchers have been studying the planet through a different-colored lens: green.

They have tried to determine which regions are particularly susceptible to some variations in climate, and which are more resilient. And after studying 14 years’ worth of NASA satellite images and tracking changes in the color of vegetation, they have developed what they’re calling the Vegetation Sensitivity Index .

A new study, published and reviewed in Nature magazine, shows the changes in shades of green (a proxy for plant health) in response to certain environmental factors — in this case, temperature, water availability and cloud cover.

Dr.…

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Last Updated : Wednesday, March 6, 2019