Opinion by Lord Julian Hunt,
RIO DE JANEIRO, BRAZIL - One of the most striking changes at Rio+20, compared to the original 1992 Earth Summit, is the extensive discussion of population issues. In part, this is driven by the fact that many developing countries, including the BRICs, are seeking to redefine what sustainability means with their generally rapid annual growth rates, and high population growth which is estimated to see world population rise from around 7 billion today, to between 8 billion and 11 billion by 2050.
This reminds us of the massive challenges, especially in the developing world, created . . .