John Locher/AP / AP The amount of planet-warming carbon dioxide in the Earth’s atmosphere has hit a new record, as humanity struggles to rein in emissions of greenhouse gasses from burning fossil ...

A new study suggests rising carbon-dioxide levels may be slowly changing human blood chemistry and could impact long term ...

Carbon is found all around the Earth, including in our bodies. While most of the carbon can be found in the geosphere, it is also found in all living things, soil, in the ocean, and in the atmosphere.

Carbon dioxide pollution in the atmosphere reached an all-time high last year—424 parts per million. That is likely the highest level since three million years ago, when trees grew in the polar ...

Where would carbon-based life be without carbon? There are 118 known chemical elements, but carbon is the fourth most abundant and perhaps the most important to human life. Everywhere you look, ...

Reaching net zero may not stop climate risks, a study finds rising seas and thawing permafrost could require carbon removal for centuries.