redOrbit: A severe drought caused by intense heat in Australia may be a clear sign of conditions to come for the United States. Record conditions “Down Under” have led to a drastic drop in rice exports, wheat crops, and water rationing. “Think of that as California’s future,” Heather Cooley of California water think tank the Pacific Institute, told Reuters. Methods of seeking out new sources of water in California have almost been tapped out, experts say. Global warming is …