Deutsche Presse-Agentur: Global warming could send Australia’s corals migrating south to where the waters are cooler, scientists said Wednesday. Researcher John Pandolfi looked at the fossil record and found evidence that coral reefs shifted south along Australia’s west coast during a warm spell 125,000 years ago. "Back then there used to be rich coral reefs dotted all along the West Australia coastline, from south of Perth to north of Dampier," Pandolfi said in a statement. "When the seas …