Which of the following statements is wrong according to the passage?
选项:
A: Since CO, was higher in the past, we don't have to worry about it.
B: Carbon dioxide in the atmosphere in general gradually declined before human beings started burning fossil fuels.
C: The sun also plays a major role in the earth's climate.
D: Most of the cooling to reduce CO, levels is offset by the bigger sun.
发布时间:2024-05-13 17:57:11