Consideration of carbon–nitrogen interactions affects CO 2 fertilization: nitrogen limitation means that only about half of the fertilization effect seen in carbon-only models is realized .
One reason tropical forests could be absorbing substantially more carbon dioxide than accounted for in the models is the phenomenon known as CO 2 fertilization. Trees take in carbon dioxide to ...
Methods for removing existing carbon from the atmosphere are in the works, and some experts are arguing in favor of iron fertilization, a geoengineering approach which would help oceans trap ...