Mountain climbers around the world dream about going up
Mount Everest (珠穆朗玛峰). It is the highest mountain in the world. But many people
who have climbed the mountain have left waste material that is harming the
environment (环境). A team of Americans is planning the largest
clean-up effort ever on Mount Everest. They will make the risky trip up the
mountain next month. The team is made up of nine Americans. Their goal is to
remove all the trash (垃圾) they see. They will spend two months cleaning up the
mountain by gathering all kinds of trash. They are expected to remove at least
three tons of trash in large bags. Team leader Doug Bell is
making his fourth trip up the mountain. He says he hopes to bring Everest to the
condition it was in before the first successful climb fifty years ago. He says
he hopes the effort will influence (影响) other people to clean up the environment
closer home. Human waste on Everest is a major concern (关注的问题). So the clean-up
team will take along newly developed equipment to collect and treat human waste.
Over the years, the waste articles have polluted the mountain. In the warm
season when the ice melts, the polluted water flows to Nepali villages below.
The problem has gotten worse in recent years because climbing Everest has become
more popular. During their trip up the mountain, what does the American team plan to
do
A. To make Everest even cleaner than it was.
B. To take away all the trash they could find there.
C. To ask climbers not to leave waste materials.
D. To collect and treat human waste before the ice melted.