- The Largest US Companies Have Highly Connected Boards.
- The Decline of Coal Power in the U.S.
- Quarterly Tesla Sales
- Tracking Icebergs as the World Warms
- Clashing for Cachet: Three Decades of U.S. News and World Report University Rankings
- Relative Populations of U.S. States over Time
- The Beating Heart of Mercury Pollution in the West
- The Decline of Acid Rain in the United States