Minneapolis Star Tribune: Climate change scientists have known for years that rising temperatures affect sea creatures, from the biggest fish to the microscopic plankton at the base of the ocean food chain. Now, a four-year expedition that sampled microbes from across the worlds oceans is bringing the mechanisms of that change into focus. These tiny creatures (seen amazingly close up above and below), which may be among the oldest on Earth, together absorb carbon dioxide, make oxygen, break down waste and nourish other creatures....