Environmental pollution has become a serious problem. Would you like to do something for the earth but you don't know 1 ? These days technology is making it much 2 for people to protect the environment. For Bryan in California, 3 only needs a phone and a trip to the beach to make a difference.
4 20-year-old student enjoys diving. He also wants to keep the seas clean. Last June, he finally turned his hobby into an eco-friendly mission(环保任务).
One day, while Bryan 5 with his phone, a new app called Rubbish caught his eye. The app calls on people around the world to pick up rubbish in their communities. Lots of local clean-up activities 6 before helping solve the pollution problem. Users only need to connect their phones 7 the app and start cleaning. That encouraged Bryan 8 his summer diving for rubbish. The app helped Bryan record what kind of rubbish he was finding and where he was finding it. It also told him 9 he had been to the place before. With the app, Bryan finds joy in helping clean up the seas. In fact, Bryan has so much fun collecting underwater rubbish that his footprint(足迹) 10 about 20,000 square meters of San Diego's seas so far!
