전보다 조굼 어려움

As the concentration of carbon dioxide (CO₂) in the atmosphere increases, the greenhouse effect intensifies, leading to global warming. However, the impact of this phenomenon on the climate is far from simple. For instance, higher CO₂ levels can enhance photosynthesis in plants, potentially accelerating their growth and increasing the biosphere’s carbon absorption capacity. At the same time, rising temperatures may lead to droughts and heat stress, suppressing plant growth in certain regions. Furthermore, the effects of climate change manifest differently across regions: some areas may experience increased precipitation, while others may face significant decreases. Therefore, it is inappropriate to explain the relationship between rising CO₂ levels and climate change as a straightforward cause-and-effect correlation.

Which of the following best explains the main idea of the passage?

A. The increase in CO₂ levels uniformly accelerates plant growth worldwide.
B. Climate change caused by increased CO₂ levels produces varied and complex effects.
C. Rising CO₂ levels reduce the greenhouse effect and stabilize the climate.
D. Regional differences in climate change have no impact on the biosphere’s carbon absorption.