Environmental
concerns
,
especially
____________________
____________________
____________________
desertification
,
are
growing
.
Desertification
is
a
huge
problem
____________________
____________________
____________________
the
loss
of
habitats
and
agricultural
land
.
____________________
the
problems
that
desertification
causes
,
the
United
Nations
adopted
a
convention
in
1994
.
This
convention
proposed
returning
land
to
its
original
state
(
land
rehabilitation
)
____________________
____________________
____________________
programs
of
sustainable
land
management
.
Many
countries
signed
up
to
the
convention
____________________
____________________
____________________
the
economic
problems
that
desertification
was
causing
.
Projects
that
have
emerged
____________________
the
adoption
of
the
convention
include
the
mapping
of
desertification
using
satellite
imagery
____________________
____________________
a
variety
of
educational
programs
.
____________________
____________________
____________________
the
severity
of
the
issue
,
it
appears
that
much
more
still
needs
to
be
done
.
