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：马旭成)