Some people, including the
president, still say that it has not been proved that human
activities
are causing global warming via the greenhouse effect.
Others say
that global warming is a fact and melting artic ice could soon
cause
serious problems. Please focus your paper specifically
on the
issue of melting Arctic ice rather than writing a general
paper about
global warming. You will find completely contradictory
views on
this subject and you must find a way to draw a conclusion, not
just
repeat the views of each side.