Today, as many as nine out of ten people breathe polluted air, leading to some 7 million premature deaths each year, of whom 600,000 are children.
Unless we act decisively, this number could double by 2050.
It has been 19 years since the terrorist attack on the UN compound at the Canal Hotel in Baghdad: “the darkest day in our lives at the United Nations”, in the words of the Secretary-General at the time, Kofi Annan.