Aid workers hail Tunisians' generosity to Libya refugees
New report details amazing response of Tunisians who opened their homes to help people fleeing Libya's civil war
About 90,000 displaced in Myanmar's Rakhine after clashes - WFP
Aid workers in Rakhine said thousands of displaced Rakhines and Rohingyas remained in dire conditions
Bangladesh wary of 'green economy' agenda at Rio+20
Bangladesh, like other developing nations, does not want environmental rules to constrain its growth potential
Farmers must lead environmental sustainability fight - experts
One key change is the growing effort to link agricultural success and the health of ecosystems like forests and water supplies
Business backs agricultural growth corridors in Africa
A mix of public and private-sector funding is helping set up local farming enterprises in Mozambique and Tanzania
Ethiopia sugar venture could sow seeds of conflict ? HRW
Up to half a million people in Ethiopia and Kenya risk destitution under plans for giant agricultural project, warns rights group
Water must be top development priority - World Water Council
Council head says universal access to clean water and sanitation should be a pillar of post-2015 development goals being discussed at Rio+20
Arab Spring helps bump refugee numbers to 11-year high - UNHCR
U.N. refugee chief says last year saw "suffering on an epic scale"
Planning for urban population surge will limit crises - experts
"All future demographic growth will be urban (and) it will be hugely positive or hugely negative depending on actions that are taken now"
Inaction on economic, climate and resource threats raising anxieties at Rio+20
?The total picture is one that needs to shake us in our boots," says head of the U.N. Environment Programme