Researchers calculated that using energy-efficient light bulbs can save households $50 a year on electricity bills

A celebrity chef created a special menu for a charity dinner to raise money for hunger reliefResearchers calculated that using public transportation instead of cars can reduce traffic congestion by 30%

A city started a composting program for residents to turn food waste into fertilizerA severe snowstorm disrupted air travel with hundreds of flights canceled or delayedA study showed that learning a second language can improve brain function in older adults

The government passed a law to protect consumers from unfair lending practices by banksA museum organized a night event with music and art installations to attract younger visitors

A local bakery started delivering fresh bread to customers’ homes early in the morning

Scientists discovered a new planet in the habitable zone of a nearby starThe government launched a campaign to encourage people to compost food waste

A museum hosted a workshop on how to paint like a famous artistA local bakery won an award for its apple pie at a national food competition

Engineers completed a new tunnel that connects two cities reducing travel time by 45 minutesThe postal service announced it would hire more workers to handle holiday mail

(责任编辑：Tech How-Tos)