The RELX Group Environmental Challenge, with a $50,000 prize for the first place entry and a $25,000 prize for the second place entry, is awarded to projects that provide sustainable access to safe water where it is presently at risk and/or access to improved sanitation. This directly assists SDG 6.1 and 6.2 to achieve universal and equitable access to safe and affordable drinking water and access to adequate and equitable sanitation and hygiene, for all. Find out more about the 2017 winners.