In a sweeping new study of more than 13,000 urban areas worldwide, researchers have mapped air pollution levels and carbon dioxide emissions, providing comprehensive global analysis of urban ...

In a sweeping new study of more than 13,000 urban areas worldwide, researchers have mapped air pollution levels and carbon ...

Carbonate minerals contain carbon dioxide, which, when present in the atmosphere, warms a planet. These minerals suggest that carbon dioxide could have previously existed in the atmosphere in larger ...

What's the currency for all life on Earth? Carbon. Every living thing needs a source of carbon to grow and reproduce. In the ...