Plants take in CO2 to grow. They extract it from the atmosphere and use it to build organic compounds by means of photosynthesis and water. Terrestrial ecosystems have absorbed an average of about 32 percent of CO2 emissions caused by human activity over the last six decades. Whether and to what extent terrestrial vegetation can continue to function as a carbon sink in a changing climate is a key question in climate science and is of vital political relevance.
Click here for original story, Droughts increasingly reduce carbon dioxide uptake in the tropics, finds study
Source: Phys.org