MICHAEL TAYLOR "IRON MAN" star Robert Downey Jr. has backed a new project that will use DNA technology to map information on fish and other wildlife living in and around rivers, lakes and wetlands to advance conservation and attract more money for such efforts. The eBioAtlas, launched on Thursday by the International Union for Conservation of Nature (IUCN) and UK-based company NatureMetrics, aims to unlock private investment and guide government policy on biodiversity. "We are at a point ... where we understand the urgency of addressing biodiversity loss," NatureMetrics founder Kat Bruce told the Thomson Reuters Foundation. "It is really being talked…