Chapman said the Dunsky paper multiplies methane emissions in Canada's national inventory by 1.7 to achieve a more likely estimate of what's actually being released into the atmosphere.

Source: https://www.chroniclejournal.com/news/national/oil-and-gas-methane-reductions-less-expensive-than-paying-carbon-tax-study-finds/article_619f94f3-810d-5f95-bd75-1b79caf1e304.html