Toxic gases: Volcanoes also release toxic gasses, such as carbon dioxide, carbon monoxide ... Unlike the fluffy bits that linger after a camp fire, volcanic ash is made up of tiny fragments ...

Researchers have developed a new portable tool that could improve how firefighters douse fires, making the process more efficient and far less risky.

Global mean surface warming throughout the 21st century will be largely determined by cumulative emissions of carbon dioxide (CO 2) and the other long-lived greenhouse gases, and what proportion of ...