【1】Though often viewed as a problem for western states, the growing frequency of wildfires is a national concern because of its impact on federal tax dollars, says Professor Max Moritz, a specialist in fire ecology and management.
【2】In 2015, the US Forest Service for the first time spent more than half of its $5.5 billion annual budget fighting fires—nearly double the percentage it spent on such efforts 20 years ago. In effect, fewer federal funds today are going towards the agency’s other work—such as forest conservation, watershed and cultural resources management, and infrastructure upkeep—that affect the lives of all Americans.
More frequent wildfires have become a national concern because in 2015 they_______.
A : consumed a record-high percentage of budget
B : severely damaged the ecology
C : caused a huge rise of infrastructure expenditure
D : exhausted unprecedented management efforts
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