In a world of limited materials, is continuous growth a realistic goal? The UN's Rio+20 summit will put the issue in the spotlight this June. Experts disagree about what good growth versus. bad really means.
Twenty years after the first Rio climate talks, UN members will meet again to develop strategies for a green economy. One aspect of the debate is whether the shift to a green economy will hinder developing countries.
Women in Senegal teach others how to harvest oysters to put food on the table and money in wallets.
Some societies say only men can own land, but the community wins when women have property rights.
Find out more about world matters