Graphite Foam Could Harness Energy from Temperature Gradient in Oceans

graphite-foam

Researchers at the Oak Ridge National Laboratory (ORNL) think that they could use graphite foam to harness energy from the temperature gradient in tropical waters, where the difference between surface and bottom varies as much as 70 to 80 degrees.

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Little Ice Age Sparked by Volcanoes, Sustained by Sea-Ice Feedback

volcano-smoke

The Little Ice Age (LIA), a mysterious period of cooling that occurred after the Medieval Warm Period and extended from the 16th into the 19th centuries, might have been caused by a series of volcanic eruptions and sustained by sea ice.

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