Scientists say increased carbon dioxide (CO2) in Earth's atmosphere is causing global temperatures to warm - sea levels to rise - and storms, droughts, floods and fires to become more severe. Here are 6 things about CO2 you might not know.
For the northern part of Earth, the season for seeing noctilucent clouds - clouds that shine at night - typically begins in June. This June has been particularly fine for seeing these electric-blue clouds. Photos and video here.
There are 161 active volcanoes in the United States, more than 1/3 of which have been classified as posing a high threat to nearby communities. A new law aims to improve volcano monitoring.
You know that look your dog gives you, with the raised eyebrows, that melts your heart? A new study says that wolves don't do it. It's a part of how dogs have evolved to communicate with humans.
A new study suggests the prehistoric reptiles could fly right after hatching. It's an ability no other flying animal living today, or in the history of life as we know it, has been able to replicate.
More evidence for a showy, fleshy snout for the hadrosaur, part of the family of duck-billed dinosaurs. These creatures lived 75 million years ago in what's now northern Montana and southern Alberta, Canada.
NOAA reports that carbon dioxide in Earth's atmosphere continued its rapid rise in 2019, reaching the highest recorded levels in 61 years of observation last month.