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Last updated on April 24, 2014 at 6:16 EDT
Problem Wells Found To Be Source Of Methane

Problem Wells Found To Be Source Of Methane

By Elizabeth K. Gardne, Purdue University High levels of the greenhouse gas methane were found above shale gas wells at a production point not thought to be an important emissions source, according to a study jointly led by Purdue and Cornell...

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2009-12-07 14:41:57

There is more to the snowflake than its ability to delight schoolchildren and snarl traffic. The structure of the frosty flakes also fascinate ice chemists like Purdue University's Travis Knepp, a doctoral candidate in analytical chemistry who studies the basics of snowflake structure to gain more insight into the dynamics of ground-level, or "tropospheric," ozone depletion in the Arctic. "A lot of chemistry occurs on ice surfaces," Knepp said. "By better understanding the physical structure...