The above image shows a stress corrosion crack in carbon steel manufactured in 1973.On its website, TransCanada touts a near-spotless spill record from 2002 to 2011 for its oil pipelines. However, the company wasn’t always perfect. One of its natural gas pipes ruptured 18 years ago near Rapid City, Manitoba. While that rupture and an … Continue reading The Big Push: Putting Tar Sands Through Old Oil Pipelines