Autotrophs participate in the carbon cycle by fixing carbon dioxide to produce the biomass that all other organisms use for life. Four autotrophic carbon-fixation pathways were already known and ...

Carbon dioxide sinks Since 1750, continuously increasing anthropogenic CO 2 emissions and land-use change have perturbed the natural carbon cycle. Of the 9.1 Pg C yr −1 (1 Pg C = 1 petagram or ...

Researchers at the University of Cambridge have found a way to take carbon dioxide from the air and turn it into a fuel named ...

Most carbon they consume is exhaled as carbon dioxide during respiration. The animals and plants eventually die. Dead organisms are eaten by decomposers and carbon in their bodies is returned to ...

While climate and carbon dioxide concentrations do contribute to annual carbon cycle highs and lows, the research found that agricultural nitrogen fertilizer is the biggest contributor to ...

Dead organisms are eaten by decomposers and carbon in their bodies is returned to the atmosphere as carbon dioxide. In some conditions decomposition is blocked. The plant and animal material may ...

meaning it is a key player in Earth’s natural carbon cycle,” commented study co-author and University of Oxford geochemist Robert Hilton. They also compared how much carbon dioxide could be ...

Plants worldwide are absorbing about 31% more carbon dioxide than scientists previously ... This discovery changes our understanding of Earth's carbon cycle and could reshape climate change ...