Caroline Solomon was on her high school's swim team. But at times she could not go into the creek（小溪）near her home. It was simply too polluted. "I decided I wanted to do something about it，"she recalls. So she studied environmental science and public policy at Harvard University in Cambridge. Later，she went to graduate school. Some of her classes could be challenging，though，since she couldn't hear her teachers. "I've been deaf since I was 15 months old，"Solomon notes.

Today she teaches biology at Gallaudet University in Washington，DC. She has no trouble communicating with her students. They，too，are primarily deaf or hard of hearing. That's why all classes at Gallaudet are taught in American Sign Language. Solomon also has an active life outside the classroom. She especially enjoys hiking，biking and other activities with her family.

Her research takes her to the Anacostia River. "It is very close to Gallaudet，and I easily bring my students there，"she says. Water running through local forests and marshes drains into this river，so does water running off urban streets，golf courses and industrial sites." The river's watershed（流域）kind of concentrates all the things that happen when humans mess with the natural landscape，"she explains. Not surprisingly，this river has developed a reputation for being quite polluted.

Solomon has been focusing on how pollutants affect tiny organisms that form the base of the river's food web. "I am now looking at the bacteria population，" she says，"to see what types there are."

Solomon wants to see more students who are deaf or have other disabilities make a difference in environmental science and other fields. As she often says, "If I can do it, you can do it."

Doing good daily doesn't necessary mean helping other people. We can also do something good for other little creatures on this earth. Today, I was on my way to home and saw the turtle trying to cross the road. I stop my car, picked up and brought it to a river nearby. It was the rush hour but there were a lot of cars behind me. It took me about five minute to finish doing that. Although my action might be an inconvenience with other cars, I knew that save a life was well worth their waiting. In my mind. what I did was meaningless.

Every morning and evening, many people gather to dance in our community square, where is designed to improve living quality. Although dancing could do good to their health, but the long-time dancing and loud noise causing by the loudspeaker really brought the neighbors inconvenience. I couldn’t rest or sleep well, which made me terrible upset. I felt so sleep in class that I performed badly in study. To solve a problem, I communicated with the organizers and suggested that they should shorten the dance time and reduced the music noise. Only doing so can they have fun and let others enjoy life. To their delight, they adopted my advices.

   The Van Gogh Museum in Amsterdam has welcomed home two paintings by the Dutch master, more than 14 years after they were ripped (扯) off the museum’s wall in a nighttime theft. Museum director Axel Rueger called their return “one of the most special days in the history of the museum”. The paintings were discovered last year by Italian police while they were searching an Italian criminals’ farmhouse near Naples for evidence of drug dealing. They were in a box and hidden behind a wall in a toilet when they were found.

The paintings were considered among the artworks most searched for in the world. After years in darkness, they can now shine again. They are back on display at the museum before being taken to the conservation studio for repair. Fortunately, they suffered surprisingly little damage as thieves who had climbed up a ladder and broken a window to get into the museum in 2004 ripped them out of their frames.

“It is not only a surprise that the works have been recovered but it’s even more surprising they are in relatively unharmed condition,” Rueger said.

The museum director was on vacation when the call came last year from Italian authorities who believed they had recovered the paintings. He didn’t celebrate right away. He’d had calls like this before.

“I was hopeful but also a little hesitant. Over these years, we had so many occasions when people phoned us, contacted us, claiming that they knew something about the whereabouts (下落) of the works and each time it was false, the trace went cold,” he said. “So… the way has been full of disappointment.” But museum experts sent to Italy to check the authenticity (真实性) of the works quickly turned Ruegers doubts into delight.

Rueger said the paintings are now back at the museum, which is home to dozens of works by Van Gogh. “I’m very confident that everything is safe in the museum from now on,” he said.

   Saja Pahad, a small village in Chhattisgarh, India, has been dealing with severe water shortages for as long as anyone can remember. With only two wells available, locals were barely able to secure enough water to feed their cattle, let alone irrigate their crops. Villagers didn’t know what to do and the government ignored their difficult situation, but one “crazy” teenager took matters into his own hands.

Shyam Lal was only 15 when he took it upon himself to solve his village’s water problem. He identified a spot in a nearby forest and decided to dig a pond to collect rainfall that could then be used by the entire village. Lal shared his idea with the rest of Saja Pahad, but instead of volunteering to help, they just laughed at his crazy plan and called him a lunatic (疯子). But the young man didn’t let the people’s reaction get him down. Instead, he grabbed a spade (铁锹) and started digging the pond himself. He kept on digging for the next 27 years.

Now 43, Shyam Lal is considered a hero by his community. That small hole he started digging nearly three decades ago is now a one-acre, 15-feet-deep pond filled with precious water that serves the entire village.

“No one helped me in my work, neither the government nor the villagers,” Lal told the Hindustan Times. “It was my dream to secure enough water for the whole village and their cattle.”

The story of Shyam Lal’s determination recently went viral in the whole of India, and prompted authorities in Mahendragarh district to finally acknowledge his achievement. A member of the government recently visited Saja Pahad and offered Lal a $ 156 prize for his contribution to the village.