Extracting natural gas from the Marcellus Shale could do more to aggravate global warming than mining coal, according to a Cornell study published in the May issue of Climatic Change Letters (105:5).

While natural gas has been touted as a clean-burning fuel that produces less carbon dioxide than coal, ecologist Robert Howarth warns that we should be more concerned about methane leaking into the atmosphere during hydraulic fracturing.

Read more: Natural Gas from Fracking Could Be ‘Dirtier’ than Coal, Cornell Professors Find

(By Stacey Shackford, Cornell Chronicle Online)