John Thackara argues that the biggest problem with the current food system is too much innovation. >

Number cruncher Gidon Eshel says sustainable is not always sustainable – especially beef. >

The Do Good Bus and Indie-pop band Foster the People recently toured North America, volunteering services as they went along. >

Author, entrepreneur and environmentalist Jason Drew says that the biggest problem with the food system is an over-taxed ecosystem. >

Airdrop is an irrigation concept that harvests the moisture in the air to irrigate crops in times of drought. >

A walking route, fireproof shacks, urban gardens and public community facilities, here are the winners of the Cape Town Your Street Challenge. >

The Freedom to Create Prize Festival, which aims to empower grassroots organisations through the arts, will be taking place in Cape Town this November. >

Get ready for the Design Indaba Conference 2012 in Cape Town and the Young Designers Simulcast, in Cape Town and Johannesburg. Book now to ensure your discount! >

Coffee, tea, copper, iron, Feminism, Marxism, arable farming, banking and more. Here's a look at 50 ideas that changed humanity. >