Completar Frases
XII ADV ENG
Built
over
a
major
fault
,
on
the
edge
of
one
of
the
world's
most
deserts
,
the
city
has
developed
like
the
extension
of
a
Hollywood
movie
set
,
a
sprawling
fantasy
which
many
people
feel
should
not
really
exist
.
Since
the
1880s
,
Los
Angeles
has
been
transformed
from
a
sleepy
cattle
town
with
a
population
of
4
,
000
,
to
a
seething
that
now
accounts
for
nearly
one
per
cent
of
global
greenhouse
.
It
is
the
car
culture
par
excellence
,
with
nine
million
cars
contributing
to
the
smog
and
air
pollution
and
40
per
cent
of
the
population
suffering
from
problems
due
to
vehicle
.
The
city
is
full
of
contradictions
.
Often
regarded
as
the
of
and
material
extravagance
,
it
is
seen
as
the
essence
of
anti
-
nature
.
,
people
often
move
to
Los
Angeles
because
of
nature
;
attracted
by
its
climate
,
the
snow
-
capped
mountains
,
the
ocean
and
the
beaches
.
The
natural
water
table
was
after
four
decades
in
the
1890s
.
In
1913
,
when
the
Los
Angeles
was
first
opened
,
water
over
350
kilometres
from
Owens
Valley
,
chief
engineer
William
Mulholland
proclaimed
that
it
would
supply
Hollywood's
lawns
and
swimming
pools
for
ever
.
However
,
neither
supply
has
been
without
problems
.
In
1964
,
the
US
Supreme
Court
settled
in
favour
of
Arizona's
claim
to
supply
from
the
Colorado
River
,
and
LA's
was
reduced
by
about
50
per
cent
.
The
city
is
also
dependent
on
the
State
Water
Project
,
which
brings
more
than
a
trillion
gallons
of
water
per
year
along
the
720
-
kilometre
Californian
,
supplying
irrigation
systems
for
the
vast
base
of
the
San
Joaquim
Valley
.
This
effectively
removes
half
the
water
that
would
otherwise
flow
into
the
San
Francisco
Bay
area
,
the
flow
of
fresh
and
saltwater
in
the
Sacramento
Delta
,
with
inevitably
harmful
consequences
for
fish
and
wildlife
.
Almost
a
third
of
the
water
feeding
Los
Angeles
is
now
obtained
by
extraction
from
underground
.
However
,
a
combination
of
illegal
dumping
,
-
from
commercial
and
leakage
from
garbage
landfills
,
has
left
some
40
per
cent
of
the
wells
in
southern
California
above
federal
limits
.
To
compound
the
problem
,
half
of
the
considerable
winter
rainfall
,
which
would
the
soil
and
the
,
is
swallowed
by
concrete
drainage
systems
and
into
the
Pacific
.
Desperation
has
led
to
some
proposals
,
ranging
from
a
plastic
pipeline
from
Alaska
to
towing
icebergs
from
Antarctica
.
Inevitably
,
the
concrete
flood
-
control
system
had
consequences
,
destroying
wetland
areas
which
provided
an
important
area
for
migratory
birds
on
the
Great
Pacific
Flyway
.
However
,
plans
are
now
underway
to
restore
the
river
,
recreate
areas
to
attract
birds
,
and
establish
nature
walks
,
cycle
paths
and
equestrian
trails
.
Led
by
the
Friends
of
the
LA
River
,
?
all
working
together
in
what
is
being
seen
as
a
attempt
to
heal
the
split
between
the
population
and
the
landscape
of
the
city
.
Being
a
prime
example
of
nature's
with
human
culture
,
Los
Angeles
clearly
provides
the
perfect
platform
to
examine
this
interaction
and
make
progress
towards
a
environment
.
"
If
we
actually
how
to
retain
the
water
that
falls
from
the
sky
,
we
wouldn't
be
so
dependent
on
water
sources
hundreds
of
miles
away
,
"
says
Price
.
Various
initiatives
have
now
been
implemented
in
this
vein
:
a
huge
waste
-
water
recycling
plant
has
been
built
in
Santa
Monica
while
environmental
groups
like
The
Tree
People
are
systems
to
collect
-
rainwater
from
buildings
,
and
redirect
it
into
underground
.
There
is
a
feeling
of
about
the
future
of
nature
in
a
city
which
has
always
been
regarded
as
being
in
fundamental
opposition
to
it
,
leading
to
a
more
integrated
vision
of
environmentalism
in
the
21st
century
.
Those
involved
with
the
restoration
of
LA
rivers
see
it
as
not
only
important
for
and
a
way
of
linking
communities
but
also
as
being
of
tremendous
.
|
Haz clic en A o HA que aparecen en la columna de la derecha, según corresponda en el texto.