Guardian: America has 2.5m miles of oil and gas pipelines. But none of those pipelines are anywhere near as contentious as the Keystone XL, which would transport tar sands crude oil from Canada to refineries on the US gulf coast. Over the past six-plus years, Keystone has become a stand-in for a broader debate about climate change. Its also the subject of much myth-making about climate change and the economy. Below, a look at some of the most prominent of those myths, and the truth behind them.
Myth #1:...