Huffington Post: It was a week where Hillary Clinton's announcement that she opposes the Keystone XL pipeline played fourth fiddle -- and a potential government shutdown was barely even in the band -- climate change was the one unifying theme connecting the week's top stories.
First, Pope Francis called for climate action at the White House welcoming ceremony on Wednesday: "It seems clear to me also that climate change is a problem which can no longer be left to a future generation. When it comes to the care of...