They don't look like Guardians Of The Galaxy-style superheroes. But, says Andrew Martin, the founders of the Centre for the Study of Existential Risk may be all that stands between us and global catastrophe
20 Aug 2014:
Advocates of district heating schemes say they reduce fuel imports, lower carbon emissions and tackle fuel poverty. Frederika Whitehead reports
A home-grown, alternative approach to farming - agroecology - is bad news for pesticides, monoculture and food poverty in Brazil, writes Camila Nobrega
Guardian Professional,21 Jul 2014:
Corrupt business deals cost developing countries millions from their annual spending budgets and undermines international aid
17 Jul 2014: William Gumede: Africa desperately needs reliable and cheaper long-term development finance. The Brics leaders may well have found the answer
16 Jul 2014:
Our pick of the winning and best entries from this year's international competition to design and build functional solar-powered houses, held in Versailles, France. Photographs by Lucien Lung
We look back at Apple's tech products, including game-changers such as the iMac and iPhone, curiosities like Lisa – and duds, like the 20th Anniversary Macintosh