September 20, 2016, 6am PDT
The rupture reveals the hazards of pipelines, but also shows how important they are to the economy. Six governors declared states of emergency to deal with gasoline shortages resulting from the pipeline shutdown in Shelby County, Alabama.
January 15, 2014, 9am PST
It's not just melting ice that threatens to submerge communities along the East Coast of the U.S. Several other factor are conspiring to raise sea levels. Scientists are racing against time to predict how bad things are going to get, and how fast.