-
"
I
was
in
on
a
32nd
floor
from
a
building
looking
at
the
.
.
.
from
my
room
to
the
city
.
It
was
completely
covered
with
smog
,
it
was
sort
of
like
a
veil
of
dust
of
pollution
.
And
I
looked
at
it
and
I
was
like
:
"
Wow
!
This
is
.
.
.
you
know
.
.
.
this
is
also
what
technology
can
do
.
It
can
liberate
us
,
but
it
can
also
cost
eight
years
of
our
life
,
or
gives
children
lung
cancer
on
the
early
stage
so
I
was
like
.
.
.
how
about
we
should
do
something
with
that
,
you
know
?
"
And
that
was
the
beginning
of
the
smog
free
park
.
"
China
is
home
to
a
population
of
about
1
.
4
billion
people
and
has
serious
economic
and
industrial
growth
over
the
last
30
years
.
Beijing
has
one
of
the
world's
largest
manufacturing
economies
,
which
has
a
ton
of
energy
.
That
energy
has
been
powered
by
coal
,
which
is
still
burnt
for
the
production
of
electricity
,
heat
,
and
industrial
purposes
.
The
use
of
coal
has
led
to
a
massive
air
pollution
problem
laying
a
thick
veil
of
smog
on
Chinese
mega
cities
.
-
"
So
one
day
,
I
think
I
was
on
the
32nd
floor
of
my
room
in
Beijing
,
and
I
looked
outside
.
.
.
outside
in
my
window
and
there
was
nothing
I
could
see
anymore
because
the
whole
city
was
sort
of
covered
with
smog
and
I
was
looking
at
it
and
I
was
like
.
"
Huh
!
But
maybe
we
can
do
something
with
that
,
with
the
smog
particles
.
"
And
that
was
the
beginning
of
the
smog
free
park
.
"
-
So
how
does
the
actual
technology
work
?
How
does
it
pull
smog
out
of
the
air
?
-
"
So
the
technology
that
we
use
is
an
ionic
technology
because
the
standard
filter
technology
?
which
is
out
there
?
does
not
get
the
small
PM
2
.
5
particles
.
It's
a
weird
thing
,
the
smaller
the
particles
,
the
less
you
see
them
,
but
the
deeper
they
get
into
your
body
,
which
makes
them
the
more
dangerous
.
But
what
we
did
is
teaming
up
with
experts
who
have
done
a
lot
of
new
technologies
in
hospitals
setting
to
purify
the
air
,
and
they
developed
a
sort
of
ionic
field
,
which
charges
the
neutral
floating
small
particles
in
a
positive
way
.
And
then
we
have
a
negatively
charged
area
you
filter
it
,
and
literally
building
the
largest
electronic
vacuum
cleaner
in
the
world
,
which
sucks
up
dirty
air
,
out
clean
air
.
And
therefore
,
creating
the
cleanest
park
in
Beijing
.
"
-
"
This
is
the
stuff
we
where
sucking
up
.
And
this
is
Beijing's
smog
.
And
so
we
are
actually
breathing
this
,
us
human
beings
.
"
-
Yeah
,
It's
easy
to
forget
about
it
when
it
is
in
the
air
and
,
but
when
you
are
looking
at
like
that
.
.
.
in
this
close
-
up
.
.
.
-
"
It's
is
incredibly
disgusting
.
"
-
It's
black
.
.
.
powder
.
-
"
This
kind
of
projects
you
know
,
when
you
.
.
.
when
you
launch
it
,
there're
always
5
,
000
people
telling
you
:
"
It
can
never
be
done
.
"
"
It
already
exists
.
"
And
so
we
sort
of
decided
to
lovingly
ignore
them
,
and
say
:
"
OK
,
this
is
not
the
solution
for
smog
.
"
But
by
creating
a
place
which
is
75
percent
more
clean
,
uses
around
eleven
.
.
.
fifteen
hundred
watts
for
the
whole
area
?
similar
to
standard
electronic
vacuum
cleaner
?
you
can
give
people
a
sensation
of
how
the
future
can
feel
like
.
And
that
was
I
think
the
most
powerful
that
we
wanted
to
make
.
"
-
You
are
sort
of
dangling
the
carrot
in
front
of
them
,
and
saying
:
"
This
is
what
you
can
have
if
the
behavior
changes
.
"
-
So
,
on
that
note
,
you
mentioned
European
industrialization
,
and
certainly
during
the
U
.
S
.
Industrial
Revolution
.
.
.
-
"
Yeah
,
like
its
riots
and
all
these
facts
,
yeah
.
.
.
"
-
Absolutely
,
we
produced
a
ton
of
our
own
carbon
,
a
ton
of
our
own
problems
,
and
how
do
we
help
promote
growth
in
developing
nations
without
promoting
pollution
?
-
"
We
have
to
be
creative
,
and
we
have
to
stop
making
an
existing
system
ten
percent
less
worse
,
but
we
have
to
invest
in
new
ideas
,
new
dreams
,
new
opportunities
.
And
this
is
on
one
hand
about
high
technology
,
but
the
other
hand
a
desire
to
be
a
curious
,
and
to
make
new
things
happen
,
and
let's
hope
it's
enough
,
you
know
.
"
So
Roosegaarde
admits
that
this
is
not
a
solution
to
our
environmental
crisis
,
but
in
a
place
like
China
where
smog
is
,
this
at
least
offers
a
glimpse
of
what
life
can
be
like
if
we
took
the
steps
toward
a
cleaner
planet
.
-
OK
,
I
know
what
I
want
to
say
.
.
.
Oh
my
God
!
Holy
.
.
.
.
,
man
!
That
was
so
quiet
?
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