WHAT HAS CHANGED SINCE 1992?
TWO DIFFERENCES ARE worth noting between
this issue and our previous issue on
sustainable cities six years ago. The first is
the greater number of examples of innova-tive
environmental action plans for cities -
most of them linked to Agenda 21,the document
agreed at the United Nations Earth
Summit in Rio de Janeiro in 1992.
A second difference between 1992 and today
is the evidence of greater interest in the
theme of sustainable cities among a broader
group of people and institutions.