We have inherited a single planet. But what have we made of it? The Earth is today an endangered heritage, and the species itself is at risk. Yet what we call problems — starting…

The population growth of the latter 20th century will come to be seen as one of the biggest events in history. Though slowing, this significant increase has by no means come to…

The director of the United Nations Educational, Scientific and Cultural Organisation summarises issues discussed in the recent session of the 21st-Century Dialogues on the theme…