>>Hey Bill Nye the
Science Guy here
with Woodsy Owl on
Earth Day 1997.
Take a look at this; it's our
human environment ecosystem,
earth place of science.
And right here are some
farm animals and some crops.
Here's a road, a vehicle, some
buildings that humans built,
and here's a tree;
probably where an animal
like Woodsy Owl lives.
Of course you'd have
to be a bigger tree
than this one for this owl.
Anyway, the big idea you see is
that the earth is
a closed system.
So if humans have some garbage
they're trying to get rid of,
some waste, and they put it
in a landfill like this one,
you see that stuff
doesn't go away.
It's there all the time
and so there's no way
for things to get out.
See, it's like the earth
has a big lid on it.
So watch; humans come along
driving their vehicles.
We'll use some organic
material here.
Oh yeah! Oh yeah, yeah.
You see the...
[ Pause ]
...the earth pollution
model, there we go.
Now if you watch...
Human air pollution is filling
the earth place of science
and pretty soon everybody
can notice.
You'll see how I seem
to be getting foggy?
Actually that's because
there's particles
in the air between you and me.
Now notice that this stuff
doesn't just stay in the air.
See when it starts
to rain as shown,
the stuff in the air washes
down onto the land and then
from there it washes
out into this lake.
See that? See the whole
thing is connected;
the whole thing is one ecosystem
that we can't get out of.
So let me ask you
this; Woodsy...
[ Pause ]
...would you drink
water like this?
Huh? Would you?
I'll tell you what, you do.
[ Pause ]
Hey, lend a hand --
care for the land.
