Changing Earth | National Geographic

I served as an astronaut as long as just

I served as an astronaut as long as just about anybody ever has more than two

about anybody ever has more than two

about anybody ever has more than two decades we recognized how important it

decades we recognized how important it

decades we recognized how important it was to have a great bulging window to

was to have a great bulging window to

was to have a great bulging window to look at the world where you could get

look at the world where you could get

look at the world where you could get down and experience the

down and experience the

down and experience the three-dimensional nature of where you

three-dimensional nature of where you

three-dimensional nature of where you were and the textures and the colors in

were and the textures and the colors in

were and the textures and the colors in the world that’s coming at your world

the world that’s coming at your world

the world that’s coming at your world that’s receding behind you on my first

that’s receding behind you on my first

that’s receding behind you on my first flight in 95 the Aral Sea just beside

flight in 95 the Aral Sea just beside

flight in 95 the Aral Sea just beside Kazakhstan was still mostly full of

Kazakhstan was still mostly full of

Kazakhstan was still mostly full of water by the time I flew in 2012 2013 it

water by the time I flew in 2012 2013 it

water by the time I flew in 2012 2013 it was gone

one of the changes I noticed between

one of the changes I noticed between 2000 to 2012 is a magnitude of city

2000 to 2012 is a magnitude of city

2000 to 2012 is a magnitude of city lights at night you can see significant

lights at night you can see significant

lights at night you can see significant changes in in the number of light bulbs

changes in in the number of light bulbs

changes in in the number of light bulbs that we as human beings are spreading

that we as human beings are spreading

that we as human beings are spreading out or the surface of earth particularly

out or the surface of earth particularly

out or the surface of earth particularly in underdeveloped countries their

in underdeveloped countries their

in underdeveloped countries their nighttime skies are getting illuminated

nighttime skies are getting illuminated

nighttime skies are getting illuminated by light bulbs just like they are in the

by light bulbs just like they are in the

by light bulbs just like they are in the countries that are industrialized

over the years I did see changes between

over the years I did see changes between my first flight and my most recent one

my first flight and my most recent one

so other areas that had built up in

so other areas that had built up in population and we’re starting to get

population and we’re starting to get

population and we’re starting to get polluted think it’s important that we

polluted think it’s important that we

polluted think it’s important that we have that vantage point of humans in

have that vantage point of humans in

have that vantage point of humans in space to look at it from above