An American Alpine Club librarian shelves books mailed back from members across the United States. The club’s collection includes more than 21,000 books and 50,000 images of interest to climate researchers. (Joe Purtell, Special to The Colorado Sun)

50,000 old photos in Golden are helping scientists answer new questions about climate change

American Alpine Club library's archive of images by early mountaineers holds clues for researchers documenting the retreat of glaciers worldwide

Outdoors Primary category in which blog post is published
Politics and Government Primary category in which blog post is published

Colorado Supreme Court rules TABOR repeal can move forward in major victory for critics

The 5-2 opinion reverses a state title board decision in January that ruled the ballot measure violated the single subject clause of the state constitution

Politics and Government Primary category in which blog post is published

Democrat attorneys general are among Trump’s largest roadblocks. Where does Colorado’s Phil Weiser fit in?

Colorado’s attorney general has already filed or joined eight lawsuits against the Trump administration. Phil Weiser says he is simply trying to protect the state, but some Republican critics argue he’s going too far.