Last week, I sent out a story on changes in Alaska over the past few million years. The theme: Many of the transitions were drastic, and they all had nothing to do with the billions of us now walking ...

The agency revamped its webpages to feature natural causes of rising temperatures such as the Earth’s orbit. EPA has scrubbed references to people’s contribution to rising temperatures from some of ...

The Sahara Desert has expanded by about 10 percent since 1920, according to a new study conducted by University of Maryland researchers. This represents roughly an area the size of South Dakota being ...