While all eyes in America were turned to President Obama's looming decision on the Keystone XL pipeline, Canadian regulators on Thursday approved another pipeline that could play a role in bringing tar sands to America.
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Rush Holt (D-NJ) saddened climate hawks everywhere when he announced last month he would retire at the end of his (eighth) term in Congress. Physicist Holt brought a unique sensibility to a body that has become increasingly hostile towards science. Here are his thoughts on Keystone and climate.