The gas surge.

The article discusses the boom in natural gas production in the U.S. as of 2014 due to hydraulic fracturing, or fracking, focusing on controversy over its potential implications for climate change and the environment. Topics include the method's ability to extract gas from otherwise inaccessible shale deposits, the economic impacts of the technology in the U.S. and worldwide, and possible impacts on water quality, earthquakes, and other environmental factors.