Newly released letter from former deputy minister requested greater transparency.
from the Ottawa Citizen
"Environment Canada wants oil and gas companies to come clean about the unidentified fluids they inject deep underground to extract natural gas.
"In newly released correspondence obtained by Postmedia News, the department’s top official told the main Canadian oil and gas lobby group that the government needed more information about the industrial process, commonly known as fracking: fracturing shale rock formations underground with fluids to extract the gas. …"