问题详情

What is the message the author intends to convey？ 查看材料
A. Global warming is more of a moral issue than a practical one.
B. The ultimate solution to global warming lies in new technology.
C. The debate over global warming will lead to technological breakthroughs.
D. People have to give up certain material comforts to stop global warming.
请帮忙给出正确答案和分析，谢谢！