How fracking works
In 2000, hydraulic fracturing — or fracking —made up less than 2 percent of all oil production in the U.S. Today, fracking accounts for more than half. Here’s how fracking works:
In 2000, hydraulic fracturing — or fracking —made up less than 2 percent of all oil production in the U.S. Today, fracking accounts for more than half. Here’s how fracking works: