Burning fossil fuels will cause catastrophic global warming: this is what top American oil executives were told by scientists in 1959. But they ignored that warning. Instead, they developed one of the biggest, most polluting oil sources in the world-the oil sands in Alberta, Canada. As investigative journalist Geoff Dembicki reveals in this explosive book, the decades-long conspiracy to keep the oil sands flowing into the US would turn out to be one of the biggest reasons for the world's failure to stop the climate crisis.