He's about to set a world record by climbing the highest peaks on seven continents and crossing the four most inhospitable deserts. But when he added a charitable aspect to his quest he made it even more meaningful.
John Feighery created mWater – a cell phone app that instantly records and maps the results of water-quality tests, making monitoring of water quality in developing countries quicker and easier.
Around the world cities are promoting urban agriculture to help feed their growing populations.
Africa is booming with young entrepreneurs, but they don't always operate like their counterparts in the US.