How much would Canada spend each year on climate change in the 2020s according to the new analysis?

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问题 How much would Canada spend each year on climate change in the 2020s according to the new analysis?
New analysis suggests climate change is going to become very expensive for Canada. (7) It could reach more than five billion dollars a year within a decade and cost even more afterward. The study from the National Round Table on the Environment and the Economy is considered groundbreaking. It says cost will continue to climb sharply, and by the 2050s it could go as high as 43 billion dollars a year. That’s also depending on how much action is taken on reducing greenhouse gas emissions and how fast the Canadian economy and population grow. (8) Researchers looked at the impact of warmer weather, forest fires, flooding and increased illness among the population, all with a raising price tag. The roundtable is made up of business leaders, academics and researchers, and it’s an advisory body to the Canadian government. The group says Ottawa should invest in programs to help Canadians adapt, and that should also work to reduce greenhouse gas emissions around the world.
                                                                    NPR News

选项 A、More than 4 billion dollars.
B、More than 5 billion dollars.
C、More than 40 billion dollars.
D、More than 50 billion dollars.

答案B

解析 细节题。根据原文,在10年内(within a decade),加拿大可能因气候变暖而每年花费50亿美元(5billion dollars)。因此答案为B。
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