Paragraph 1
Mount Everest is the world's
mountain. An
in the number of
has led to poo being left on the
. A local official said: "Our mountains have begun to stink." He added: "Human poo is
on rocks, and some climbers are falling
. This is not
. It damages our image." Climbers must now buy a bio-degradable "poop
" for their poo. They then throw the bag away when
come down from the
.