Human activities, however, have pumped carbon dioxide into the atmosphere at a pace perhaps never seen before ... which helps them determine how strongly the sample was influenced by natural sources ...

A ground-breaking project to suck carbon out of the sea has started operating on England's south coast. The small pilot ...

Carbon-rich water sinks deep underground, locking away CO2 where it can’t harm the climate anymore, even during earthquakes.

80% of the lakes sampled contained higher concentrations of carbon dioxide than the atmosphere, indicating that they functioned as net sources of carbon dioxide. A regression analysis revealed ...

To study Mars’s chemical and mineral makeup, the Curiosity rover drills one to 1.5 inches down into the subsurface, then ...

Otherwise the concentration of carbon dioxide in the atmosphere will continue to grow ... the planet's carbon sinks are becoming sources of CO2 emissions. Warmer oceans are less able to take ...

By that Ralph Keeling means sources of CO2 such as fossil-fuel ... Significantly, his data showed a relentless rise in atmospheric CO2 levels, depicted in the famous Keeling Curve.