Scientific Showdown At Cornell

The Innovation Trail profiles a scientific showdown over natural gas that’s taking place at Cornell University:

In April, Bob Howarth and two of his colleagues at Cornell University published a report in the journal Climatic Change, with this conclusion:
Natural gas is a dirtier fuel source than coal or oil.
The piece caused an uproar among energy analystsindustry insiders and researchers, and the result is a new article – set to come out in the same journal – by another Cornell professor, that directly contradicts the initial study:
Natural gas is a cleaner source of energy than coal.
And it’s panning out to be a showdown.