New data shows that CO2 levels have broken through 430 parts per million, an indication that human-caused global warming will ...

Carbon compounds, such as carbon dioxide (CO2) and methane (CH4), circulate in the atmosphere ... nitrogen is a necessary component of biological molecules. Some of these molecules include ...

Environmental concept of carbon dioxide or CO2 pollution. Royalty-free licenses let you pay once to use copyrighted images and video clips in personal and commercial projects on an ongoing basis ...

Graduate School of Science and Technology, Chiba University, Yayoi, Inage, Chiba 263-8522, Nippon Steel Corporation, Shintomi, Futtsu, Chiba 293-8511, and Institute of Research and Innovation, Takada, ...