A greater commitment to multidisciplinary research, and to local problem solving, is essential to achieving future development goals.

Last week's summit has confirmed that sustainable development will only be achieved through the political leadership of developing countries.

Yet more failure to make much progress on climate change in Durban means that developing countries must exert stronger political pressure.

The Fukushima accident raised questions that must be addressed by developing countries considering nuclear energy.

The world still needs nuclear power — but it must be safer and more transparent.

Technical obstacles to efficient solar energy are shrinking, but economics and politics still challenge its widespread adoption by the poor.

Clean technology to meet poor communities' needs must lie at the heart of any sustainable strategy to combat climate change.

A commitment to biofuels should be based on a careful assessment of their prospective benefits and costs, not a blind leap of faith.

The world must not miss its second chance to take a radically different approach to energy consumption.

Almost unnoticed, Nepal is developing simple and cheap technologies that make the best of local resources and don't damage the environment.

A report last week on the economic aspects of climate change is not just another warning of imminent catastrophe, it is also an optimistic message for developed and developing countries alike.