More than 600 citizen scientists are testing South Africa’s water resources as dedicated environmental organisation and Organisation Undoing Tax Abuse initiative WaterCAN’s yearly Water Testing Week programme gets under way. WaterCAN officially launched its second Water Testing Week on September 19 at the Walter Sisulu Botanical Gardens, in Johannesburg, with the initiative running from September 17 to 24, including World Water Monitoring Day on September 18 and World Rivers Day on September 24.