Agence France-Presse

SYDNEY: Global warming could force temperatures in parts of Australia up by more than six degrees Celsius by 2070, the national science agency has warned.

Hundreds of members of Nigeria's Ogoni minority have marched in the oil city of Port Harcourt to mark the tenth anniversary of the execution of rights activist Ken Saro-Wiwa after he protested against the energy giant Shell.

The world faces a massive increase in carbon dioxide emissions, which fuel global warming, due to population growth, poor countries getting richer and the failure of wealthy countries to reduce greenhouse gases, a world population conference heard here Tuesday.