Climate
change
is
a
major
problem
in
the
world
today
.
Scientists
believe
that
climate
change
is
mainly
____________________
by
an
excess
of
____________________
gases
,
like
methane
,
carbon
dioxide
,
and
nitrous
oxide
.
Humans
put
these
into
the
atmosphere
with
our
____________________
activities
.
The
excess
of
atmospheric
carbon
dioxide
is
caused
by
burning
fossil
fuels
,
which
we
use
to
____________________
our
cars
.
Climate
change
is
expected
to
cause
many
____________________
in
the
future
,
such
as
droughts
,
strong
storms
,
and
the
loss
of
ecosystems
.
____________________
predict
that
the
____________________
ice
will
be
completely
melted
by
2050
.
____________________
,
there
are
lots
of
____________________
ways
to
help
prevent
this
.
Using
less
energy
,
taking
public
transportation
often
and
eating
meat
less
are
all
easy
ways
to
____________________
climate
change
.
