A study found that volunteering 2 hours a week can improve overall happiness

A bookstore started a book club for parents and kids that focuses on children’s literatureResearchers developed a new vaccine that provides protection against three different viruses

The railway service announced it would offer free travel to students during school breaksA new TV show based on a popular video game became one of the most-watched series of the yearA study revealed that eating nuts as a snack helps maintain healthy cholesterol levels

A city installed more security cameras in parks to prevent vandalism and crimeAn airline announced it would add more legroom to its economy class seats starting next year

Scientists found that a certain type of algae can be used to produce clean biofuel

The government launched a campaign to encourage people to reduce their energy use at homeCamping store expands selection of eco friendly camping gear and supplies

Marine biologists launch project to restore damaged coral reefs in tropical oceansSchool newsletter highlights student achievements in academics and sports

Chemists create non toxic cleaning products safe for use around children and petsVolleyball tournament features teams from 25 colleges competing for championship

(责任编辑：茜蒂诺哈丽莎)

• ·A running event for charity raised $1 million for cancer research with participants of all ages
• ·Wrestling team wins state championship for the third consecutive year
• ·A protest against racial discrimination drew 10,000 participants in the city center
• ·The city implemented a new traffic management system to reduce congestion downtown
• ·Scientists used stem cell technology to grow functional organ tissues in a laboratory setting
• ·A high school robotics team won first place in a state competition with their autonomous delivery robot
• ·A famous singer released a new single that became a top hit within days of its release
• ·A school district started a mentorship program for new teachers
• ·A city installed new public art installations in downtown areas to attract tourists and support local artists
• ·A major airline announced it will partner with a renewable energy company to power its flights with biofuel
• ·Lifeguards teach water safety classes at public beaches
• ·Researchers studied the impact of noise pollution on sleep quality in urban areas
• ·Engineers design new system to reduce energy use in office buildings
• ·A library added e-books and audiobooks to its collection for users to borrow online
• ·International organizations are sending medical teams to regions hit by a recent earthquake
• ·Engineers develop new method to purify water in areas with limited resources