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[slate]

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[text on screen: This new timelapse shows 20 years of life on Earth. Show us what's happening here.]

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[text on screen: This new timelapse shows 20 years of life on Earth. Show us what's happening here.]

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Well NASA has a fleet of satellites that

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are always measuring Earth or looking at land, oceans,

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atmospheres, ice altogether.

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Uh - the particular visualization you'll see next

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represents the measurement of all life on Earth

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over 20 years. I personally find

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it mesmerizing, um, you're watching the Earth

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breathe here. The seasons are changing. Ice is coming in and retreating.

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You can see the forests on land in green, expanding

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and contracting. You can see the deserts. Moving

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to the ocean you can see biological deserts in the centers

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of the ocean, represented by blues and purples.

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And then as you look farther north in the Atlantic or towards

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Antarctica you can see these greens and yellows,

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explosion of life in ocean just like on land in the spring and summer.

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Incredible.

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[text on screen: What trends has NASA observed over the last two decades of studying life on Earth?]

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Absolutely, the view from space has

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opened our eyes to so many different things.

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You can see transitions from La Nina to to El

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Nino, represented by huge blooms of

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life across the pacific ocean at the eqator.

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Bigger and wider than the United States you can see

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greening of the Arctic.

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You can see earlier summers, later winters.

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And you can see the emergence of harmful and nuisance

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algae that appear in areas and make

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a lot of work of shell fisherman and commercial fisherman.

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[text on screen: What makes this data set of life on Earth so special?]

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The ability to

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expand your senses into space, compress

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time, watch visualizations like these

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see how the ecosystems

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of land, ocean, atmosphere, ice all interact

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and then be able to rewind and watch it again and again.

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It's -yeah

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It's amazing.

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[text on screen: Where can we go to learn more?]

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Please visit us online at nasa.gov/earth

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you can see all of our visualizations there.

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You can see stories about this. If you're really

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keen on getting the data you can do so too, with tools how to use it.

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And then, on Twitter @NASAEarth.