A huge amount of oilsands emissions may go unreported each year, study finds
may be significantly underestimated, adding to a growing pile of studies that say our understanding of what is going into the atmosphere is incomplete.
In a paper published last week in a prominent U.S. science journal, Environment and Climate Change Canada researchers used new ways of measuringthat resulted in figures at least 65 per cent higher than those reported by industry. “We found that are higher than the CO2 estimates that are reported in the greenhouse gas reporting program,” said lead author Sumi Wren of Environment Canada.The paper, published in the Proceedings of the National Academy of Sciences, describes how the researchers combined measurements from overflights, satellites and historical data to reach their conclusions.
Using that historical record and the constant ratio of those gases to carbon dioxide, the team could then calculate how much carbon dioxide had been released over the years. Their figures suggest the oilsands could be releasing about 31 million tonnes of unreported carbon dioxide into the atmosphere a year. As well, that potential under-reporting goes back to at least 2018.
France Dernières Nouvelles, France Actualités
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