[slate]
[text on screen: This new timelapse shows 20 years of life on Earth. Show us what's happening here.]
Well NASA has a fleet of satellites that
are always measuring Earth or looking at land, oceans,
atmospheres, ice altogether.
Uh - the particular visualization you'll see next
represents the measurement of all life on Earth
over 20 years. I personally find
it mesmerizing, um, you're watching the Earth
breathe here. The seasons are changing. Ice is coming in and retreating.
You can see the forests on land in green, expanding
and contracting. You can see the deserts. Moving
to the ocean you can see biological deserts in the centers
of the ocean, represented by blues and purples.
And then as you look farther north in the Atlantic or towards
Antarctica you can see these greens and yellows,
explosion of life in ocean just like on land in the spring and summer.
Incredible.
[text on screen: What trends has NASA observed over the last two decades of studying life on Earth?]
Absolutely, the view from space has
opened our eyes to so many different things.
You can see transitions from La Nina to to El
Nino, represented by huge blooms of
life across the pacific ocean at the eqator.
Bigger and wider than the United States you can see
greening of the Arctic.
You can see earlier summers, later winters.
And you can see the emergence of harmful and nuisance
algae that appear in areas and make
a lot of work of shell fisherman and commercial fisherman.
[text on screen: What makes this data set of life on Earth so special?]
The ability to
expand your senses into space, compress
time, watch visualizations like these
see how the ecosystems
of land, ocean, atmosphere, ice all interact
and then be able to rewind and watch it again and again.
It's -yeah
It's amazing.
[text on screen: Where can we go to learn more?]
Please visit us online at nasa.gov/earth
you can see all of our visualizations there.
You can see stories about this. If you're really
keen on getting the data you can do so too, with tools how to use it.
And then, on Twitter @NASAEarth.