![EPA administrator Scott Pruitt [photo from 2014]](https://images.hgmsites.net/tmb/oklahoma-attorney-general-scott-pruitt-2014_100584650_t.gif)
When top U.S. scientists released the fourth National Climate Assessment, it spelled out one blunt conclusion: human activity in releasing carbon dioxide into the atmosphere caused the climate change that has warmed the globe. Mandated for release every four years, the report will apparently have no sway over EPA administrator Scott Pruitt, a...