A smartphone company offered a trade in program for old phones to reduce electronic waste

A study found that daily walking can reduce the risk of stroke in older adultsThe space agency successfully landed a probe on a comet to collect samples

A coffee chain announced it will source all its beans from sustainable farmsThe city council approved a project to build a new community center in the suburbsArchaeologists found evidence of an ancient civilization in a cave system

Car companies announced a partnership to develop self-driving technologyA drought led to water conservation measures in cities across the western states

The Nobel Prize in Physiology or Medicine was awarded to researchers studying cell biology

A community organization offered free job training programs for unemployed residentsA pet rescue organization started a "pet food bank" for low-income pet owners

A restaurant started offering happy hour specials on appetizers and drinksA school district started a mentorship program for new teachers

A tech startup released a new app that helps users find local fitness classesA community garden hosted a pumpkin carving contest during Halloween

(责任编辑：王冰洋)