In the third year of our open ideas student competition, we are exploring the world’s most vital resource: Water. The Urban SOS: Water competition seeks creative design, planning and engineering responses to urban sites facing water-based challenges. Water is central to every aspect of city life: from basic human sustenance and public health to environmental remediation and overall urban renewal. See www.aecom.com/urbansos for complete submission requirements and to learn more about the competition. Three finalists (individuals or teams) will travel to London in November to present their submissions to our jury at the NLA, the centre for London’s built environment, competing for a cash prize of US $15,000. A further award of up to US $25,000 in value will be made available to a charitable/relief organization to help make your project possible.