The air in the atmosphere is a mixture of gases. Most of the atmosphere is nitrogen (80%) ... The composition of the atmosphere has changed over time, and is changing right now.

Combing the atmosphere to measure greenhouse gases Date: October 29, 2014 Source: National Institute of Standards and Technology (NIST) Summary: By remotely 'combing' the atmosphere with a custom ...

Natural gas used for powering household stoves, furnaces and water may contain levels of cancer-linked compounds that are toxic to residents when leaked, a new study has found. The research ...

Soils control atmospheric hydrogen Date: March 4, 2014 Source: University of Otago Summary: Researchers are helping to clear up an enduring mystery regarding the composition of the Earth's atmosphere.

Air and crustal-radiogenic Ne in the gas field are mixed in almost constant proportion, before variably mixing with the magmatic CO 2 (ref. 4).This generates an (air + crust)–mantle mixing line ...