Careful assessment and policies on genetically modified crops could contribute to agricultural development and food security.

Organising research into different types of knowledge can promote decision-making based on evidence from a range of sources.

City planners can find a way to use existing evidence and deal with uncertainty in designing strategies for climate change adaptation.

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

Scientists can help smallholder farmers get more out of their crops in changing food markets.

Scientific collaborations can build trust and facilitate progress in nuclear arms control and disarmament.