Unconventional oil won't save us: even a crash programme to develop the Canadian tar sands could deliver only 5m barrels a day by 2030.
非常规石油拯救不了我们：即便启动开采加拿大沥青砂这一应急方案，到了2030年每天也只能供500万桶。
Unconventional oil won't save us: even a crash programme to develop the Canadian tar sands could deliver only 5m barrels a day by 2030.
非常规石油拯救不了我们：即便启动开采加拿大沥青砂这一应急方案，到了2030年每天也只能供500万桶。
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