Delegates from nearly 200 countries have spent the past two weeks in Warsaw, Poland. More than 9,000 representatives gathered for a United Nations conference on climate change. Organizers called the meeting to work toward a treaty to fight rising temperatures on our planet. The treaty would be signed in 2015 and take effect after 2020.
It doesn't matter whether you play a guitar, a piano, a horn, or a drum. And what kind of music you play is not important. Just play itl It will do good things for your body. The research at Northwestern University shows that playing a musical instrument is good for your brain. And although our ears may not work well as we age, the brain remembers how to "Iock onto" the important sounds. And that helps us to hear better.
Powerful, intense fires have been burning out of control in parts of the western United States. In a new report, scientists are predicting more and bigger wildfires over bigger areas and for longer periods in the western United States. Scientists at Harvard University in Massachusetts looked at past weather conditions and wildfires to find out why. Atmospheric chemist Loretta Mickley is a researcher and helped to organize a new study. She says high temperatures and rainfall in other years can create the conditions for large fires.
The western state of California is known for wildfires. This year the fire season has been extremely active. California has some of the most experienced firefighters in the country because of its high risk of fire. Prisoners who have no history of violent crime and are in good physical condition may train and work as firefighters. They may get their prison sentences reduced in exchange for their help fighting fires. But that is not the only appeal of the work program, says Louie Orozco, who was sentenced to prison for robbery.
Americans have been volunteering to make a difference around the world through the Peace Corps for more than 50 years. A community development program for the United States began 20 years ago. Its name is AmeriCorps. And now, another volunteer effort is making a difference in people's lives______ with music.
阅读以上5段材料，然后与下面各标题相匹配，并将其标号填入题前括号内。

A．Working to fight climate change

B．Rising temperatures could mean more wildfires

C．Prisoners in California help fight wildfires

D．Music and the human brain

E. Volunteers bring music to those in need