Understanding how nature reacts to climate （气候) changewill require checking key, life cy

Understanding how nature reacts to climate (气候) changewill require checking key, life cycleevents-flowering, the appearance of leaves, the first frog calls of the spring-all around theworld. But ecologists (生态学家) cant be everywhere, so theyre turning to non-scientists, some-times called citizen scientists, for help. A group of scientists and educators set up an organization last year called the National Phenology Network. "Pbenology" is what scientists call the study of the timing of events in nature. One of the groups first efforts is to ask scientists and non-scientists to collect information aboutplant flowering and leafing every year. The program, called Project BudBurst, collects life cycleinformation on a variety of common plants from across the United States. People taking part in theproject record their information on the Project BudBurst website. "People dont have to be scientists-they just have to look around and see whats in theirneighbourhood," says Jennifer Schwartz, a scientist with the project. "As we collect this information, well be able to know about the changes of plants and animals as the climate changes." Not only that, the information also helps scientists learn about how these changes will have aneffect on people, scientists examining lilac (丁香花) flowering in western United States reportedthat in years when lilacs flowered early--before May 20th-wildfires later in the summer and fallwere likely to be larger and more serious. Lilac flowering, then, could serve as an alarm bell. "The best way for us to increase our knowledge of how plants and animals are reacting toclimate change is to increase the count of information we have," Schwartz says. "Thats why weneed citizen scientists to get as much information from as many places on as many plants and animals over as long a time period as we can. 根据材料请回答下列各 Project Budburst aims to_________

A.study animal behavior. all year round

B.invite citizen scientists to do scientific research

C.collect information on the life cycles of common plants

D.help ecologists learn about wildfires in western United States