ROLEX AWARDS FOR ENTERPRISE

Tim Bauer, centre has developed a simple and affordable retrofit kit that virtually eliminates pollution from the two-stroke engines of Filipino tricycle taxis.

Envirofit's direct-injection kit provides means for tricycles to comply with the Philippines' strict air pollution legislation.

Volcanic eruptions, like this one on Mount Stromboli, have killed thousands of people with little advance warning of the danger. Andrew McGonigle is creating an early warning system to predict eruptions.

Remote-controlled helicoper champion David Fisher (left) operates McGonigle's aircraft in the plume of a volcano. It only takes a few minutes to gather the necessary data.

Umzi Wethu project manager Pinky Kondio (left) visits students Ntomboxolo Ngoxoza (centre) and Phakamisa Kolisi (right) at their home in a township.

Caring for wildlife like these elephants at the Sharnwari Game Reserve requires a skilled workforce which Muir's Umzi Wethu programme is helping.

Petra's 3,000 monuments most built by the Nabataeans, include a Roman-style theatre. All will be covered by Akasheh's information system.

Akasheh and his team collate data on Petra's Obelisk Tomb. The GIS system will also be used to plan tourist trails to preserve the monuments and ensure safer conditions for visitors.

Social Activist Elsa Zaldivar has been involved for 15 years in innovative development projects for paraguayan women and underpriviledged rural populations.

Elsa Zaldivar (right) has revived loofah cultivation in Paraguay, turning it into a flourishing craft industry that provides an income to hundreds of peasant women.