The Greenbelt is not the problem.  As the article states, "100,000 people join the GTA every year".  That translates into growing congestion, one of the noticeable side effects of a constantly growing population.  There are 7.5-million people in the GTA RIGHT NOW, placing demands on water supplies that are taken from Lake Ontario & underground aquifers.  No matter what town it is, the local councils want to 'keep growing', and the provincial government mandates where human populations will grow.  Look around the world -- China has 1.4-billion people, and they are suffering from polluted air and water. India has an equivalently large demanding population.  Nowhere on earth are places made better by human over-population. Other species are driven toward extinction while humans fight over housing, food and water.  Why not aim for population stability? No one ever complained because they had too much space, clean air & water. We are just starting to argue over territory.