Guardian: Very few of us have the opportunity in life to look forward to our legacy. However, sometimes events occur that we just know will shape how history will judge us.
One of those events is about to happen to President Barack Obama. This year, his administration is expected to make a decision on whether to allow the construction of a massive pipeline that would be used to export tar sands from Alberta, Canada. The so-called Keystone XL pipeline would essentially bisect the United States to bring the...