Quantcast

Latest Paul Shepson Stories

Problem Wells Source Of Greenhouse Gas At Unexpected Stage Of Natural Gas Production
2014-04-16 11:50:35

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 universities. The findings could have implications for the evaluation of the environmental impacts from natural gas production. The study, which is one of only a few to use a so-called "top down" approach that measures methane gas levels in the...

d0e0b77de4587254f0cb30a11b70af68
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...


Word of the Day
blee
  • Color; hue; complexion.
This word is Middle English in origin.
Related