<span>Carbon is stored inside plants. When deforestation occurs or any other natural clearing of land, the carbon cycle is changed due to plants being removed that would have captured the CO2 and changed it to oxygen and also by the removal of large plants that store carbon being replaced with either small crops or concrete that do not store carbon.
In nature, fossil fuels release carbon very slowly over time, humans burn it at a much greater rate due to dependence on it, and burning fossil fuels emits a lot of CO2 into the atmosphere.</span>
<span>“By
long suffering my nerves had been unstrung, until I trembled at the
sound of my own voice . . . .”
His nerves are unstrung, he trembled at the sound of his own voice, this could mean many things however it is likely he is Saying (or Thinking) things that scare him when snapping back to reality, like a man who was about to commit suicide but then remembers reality and he fears his own mind of what he was thinking.
“Another step before my fall, and the
world had seen me no more . . . .”
sounds cool, but is too vague.
</span>
<span>“[T]here was the choice of death with its direst physical agonies, or death with its most hideous moral horrors.” This is close to the first one, he sees how far he is to madness, but is still on the edge and not insane Yet. However it's not as clear as the first one I listed
</span>
<span>“I saw clearly the doom which had been prepared for me . . . .” displays nothing.</span>
