Final answer:
If only half of the world's plant life exists in 2110 due to deforestation, the atmospheric carbon level is likely to be significantly higher. The decrease in plants would lead to a reduction in carbon dioxide absorption, causing an increase in atmospheric carbon levels.
Step-by-step explanation:
If only one half of the flora (plantlife) in the world existed in 2110 due to deforestation, the atmospheric carbon level would likely be significantly higher. Plants play a crucial role in absorbing carbon dioxide through photosynthesis and storing carbon. With half of the plants gone, there would be a decrease in carbon dioxide absorption. As a result, atmospheric carbon levels would rise, further contributing to climate change and its effects.