Word: carbonations
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...found that increased amounts of carbon dioxide will cause photosynthesis to occur more quickly, which will lead to faster rates of plant growth...
...high carbon-to-nitrogen ratio in these plants means that they are nitrogen-deficient, because a greater amount of nitrogen is needed to sustain the larger plant...
Consequently, higher levels of carbon dioxide in the atmosphere mean that corn, which is surrounded by a denser growth of weeds, requires more herbicides. Wheat, however, which is more nitrogen-deficient and slightly less healthy, requires higher doses of fertilizer...
Experiments in the Harvard Forest Ecosystem near Petersham, Mass. have shown that if there is too much carbon in the leaves, decomposition slows down, and nutrients are returned to the ground more slowly. Once there are less nutrients in the ground, plant growth will be stunted...
Secondly, Bazzaz has shown in experiments that butterfly larvae that eat leaves with a higher carbon-to-nitrogen ratio than normal are more prone to death. They have a higher mortality rate and grow less than larvae that eat leaves grown from a nitrogen-rich environment. Consequently, insect populations will go down, which in turn may upset the food chain...