The Rio+20 Secretariat's analysis of S&T trends and achievements since the 1992 Earth Summit points to ways of accelerating progress.

Rio+20 is an opportunity to focus on harnessing scientific evidence and good governance to improve the management of water resources.

South–South research collaboration can be a powerful strategy for boosting scientific capacity and achieving common goals. But it should not be embraced uncritically, says Athar Osama.